City Creek Nature Notes – Salt Lake City

June 25, 2017

June 25th

Fishing spiders

5:00 p.m. The first mile of road has turned into a green tube, and the garland of butterflies described on June 15th and June 22nd continues. The sky is clear and the air calm. Trees overhang above and views of the stream are obscured by thick underbrush except at picnic sites. The stream can also be accessed at small breaks made by anglers or at small natural breaks. There about ten of these breaks along the first road mile. I force myself through several of the breaks and look down to enjoy the cool, transparent stream. At each I find various types of spider webs: disordered tangle webs, sheet webs hung low just above the waterline, and the circular webs of Orb weaver spiders (Araneus sp.). Paradoxically, I see no spiders today, but their webs are full of hapless arthropod victims.

Lining the stream banks at these breaks are Bittersweet nightshade plants (Solanum dulcamara) a.k.a. Climbing nightshade with deep blue blossoms. These plants hug the stream’s steep banks and vertical rock retention walls, and they grow just above the waterline. At a few places along the first road mile, they incongruously protrude from the understory of serviceberry bushes (Amelanchier sp.), and there they are noticeable because their colorful blossoms are one of the few flowering plants that are left after the spring flower explosion. The Nightshade’s blossoms are either shriveling or extend vibrant yellow cones surrounded by blue petals. In the fall, these will yield bright red fruit.

Looking up from the stream and into the thick green sub-story, there are butterflies everywhere. They are the usual suspects for a canyon spring and early summer: Cabbage white butterflies, Western tiger swallowtails, Mourning cloaks (Nymphalis antiopa). These are now joined by White Admiral butterflies and by Common whitetail dragonflies patrolling overhead. I am used to seeing this floating butterfly assemblage traveling linearly on their feeding searches along bushes on the road’s sides, but here they fly in their natural setting. The butterflies follow large spiral flight paths broken by and traveling through the dense shrubs. In this setting, their frenetic sharp turns and chaotic shifts are necessary to navigate this complicated scene, and this explains these seemingly purposeless motions on their flights over the road. In this manner, the butterflies explore every possible hiding place in which a flowing blossom might be found.

At each of my stops along the stream, I see about five butterflies, and together with butterflies along the road, I estimate that there about 100 butterflies in the first mile road. Two Painted Lady butterflies (Venessa cardui) are also patrolling the roadside bushes. What flowering plant these butterflies are searching in the shurb understory is a mystery. The daytime flowering blossoms of spring are past, and only a few Foxglove beardtongue flowers remain open producing nectar. The only substantial flowering plant left is Yellow sweet clover. But the stands of this weed that line only the roadsides are fading, and on any one plant only one-third of the blossoms found at their peak are viable.

The fierce post-solistice sun begins to affect tree leaves. One or two Gambel’s oaks and Norway maples have a brace of leaves that are browned and shriveled at the edges. Once damaged, their leafs curl up, and the crabapple tree at the upper end of Pleasant Valley near mile 1.7 shows similar signs of stress. But the deciduous trees’ principal defense against the loss of water from heat and sunlight is a waxy layer on the upper surfaces of trees. This is best seen on the leafs of the western River birch trees. At the right angle to the Sun, their canopy flashes dappled green light for leafs titled away from the light and a blinding silver-white light for those at appropriate angle of reflection. University of Sussex ecologist Hartley notes that the waxy layer provides another benefit: it is some tree’s defense against caterpillars (Hartely 2009). Although caterpillars have evolved specialized feet to grasp leaf surfaces, caterpillars have a hard time walking over the wax layer, they fall off, and the plant is preserved. This may explain the caterpillars sometimes found along the road in the last week. I had supposed the caterpillars had crawled onto the roadway, but perhaps they have slipped and fallen from above.

Returning down canyon from milepost 1.5, insects are backlit by the Sun, and this makes them easier to see. At mile 1.1 near the entrance to lower Pleasant Valley, 30 to 40 Common whitetail dragonflies are circling between 50 and 100 feet above ground. Between the road surface and fifty feet, there are none. In cool places beneath the shade of trees, the prey of the dragonflies, groups of up to 100 gnats float. A small, immature desert tarantula (Aphonopelma chalcodes) scurries into the bushes.

Also mile 1.1, I hear raptor screams, and this repeats my earlier experience of June 21st. They are the unmistakable calls of two Peregrine falcons (Falco peregrinus). This time I travel back up canyon to get a better view, and below the eastern canyon wall near mile 0.8, more than a quarter-mile away, two peregrines are driving a smaller bird away from the canyon sides. There loud screams travel coherently through the calm summer air. This may be where the peregrines are nesting this season, but that side of the canyon does not have the steep cliffs found on its western walls. I note to watch this area closer to see if a nest can be confirmed.

* * * *

Per Thoreau’s “Journal” on June 25th, 1852, he sees a rainbow in the eastern morning sky. He opines that younger birds are duller in color in order to protect them from predators. He hears a bobolink and a golden robin. He sees wild rose and butter-and-eggs. He notes that in cool air, the ridges on distant mountains are more distinctly seen. He describes a moon-light walk. On June 25th, 1853, he finds two bushes of ripe service berries and associated cherry birds. On June 25th, 1854, he sees a bittern. On June 25th, 1858, he sees two or three young squirrels playing. He observes how objects including grass and water skimmers cast lenticular shadows on the bottom of a river. He again notes how the lighter undersides of leaves illuminate dark sprout forests.

* * * *

On June 25th, 1946, City Water Commissioner D. A. Affleck closed all lands in lower City Creek and above 14th Avenue to entry in order to prevent the possibility of grass fires (Salt Lake Telegram). Campfires were prohibited in upper City Creek Canyon (id). On June 25th, 1913, City officials plan to inspect the headwaters of Salt Lake valley canyons for water purity as part of a plan to develop more water sources (Salt Lake Telegram). On June 25th, 1896, new silver and lead ore bodies were discovered in upper City Creek Canyon about one mile from the old Red Bird Mine on Black Mountain (Salt Lake Herald). Mining work continues at other mines in the Hot Springs mining district, which includes City Creek (id). On June 25th, 1892, an old, destitute woman who had been living in cave in City Creek Canyon was sent to the hospital (Salt Lake Times).

June 24th

Filed under: Gambel's Oak, Uncategorized — canopus56 @ 10:57 pm

The Oak Forest Over Time

External Link to Image

Comparison of Ensign Peak Area, Gambel Oak Forest – 1912 and 2017. Upper frame: author taken June 2017. Lower frame: W. H. Shipler taken September 12, 1912, Utah Historical Society. The foreground of the upper frame is contains cheat grass.

11:30 a.m. I am standing at the corner of 11th Avenue and Bonneville Drive where the road turns north above the lower canyon that leads to Guardhouse Gate. The Gambel’s oak forest is visible on the distant hillsides around Ensign Peak. Across the almost forty years that I have lived near the canyon, I have had the subconscious impression that the Gambel oak chaparral forest is expanding on the southern half of the Salt Lake salient hillsides that overlook the city and on the slopes that face the canyon. I take a photograph of the Gambel’s oak forest around the Ensign Peak area and begin looking for historical comparison photographs. One exists in the University of Utah Marriott Library archives taken by Salt Lake photographer William H. Shipler in September 1912 near the intersect of 11th Avenue and Bonneville Drive on the east side of the lower canyon. This was before Memory Grove and the State Capitol were completed in 1927 or any homes existed above the present State Capitol Building. The Ensign Peak oak groves appear in the background. Comparing the two photographs separated by almost one-hundred and four years, the Gambel oak groves in the gully to the north or and that leads to the peak have significantly filled in. The same is true of the next gully to the north through which the Bonneville Shoreline Trail passes. (Shipler 1912). Here, the Gambel’s oak forest is locally expanding.

Rogers of Columbia University matched a photograph taken by the Karl Grove Gilbert in 1901 with one that Rogers took in 1977 in Section 2, Township 3 South, Range 1 East, Salt Lake Base Meridian near the present day Karl Grove Gilbert Geologic Park west of the mouth of Little Cottonwood Canyon (Rogers 1984, Plate 45). (In 1890, Gilbert, a geologist, authored a landmark report on ancient Lake Bonneville (Gilbert 1890) and later succeeded John Wesley Powell as the head of the United States Geological Survey.) The Gilbert-Rogers photographs were of the Wasatch Front Mountain Range slopes that face the city west of Big Cottonwood Twin Peaks and Deaf Smith Canyon. Rogers noticed increases in the size of Gambel oak groves and maples on those western slopes (Rogers, Plate 46). I do other comparisons using two Landsat infrared images of Salt Lake City separated by thirty years and taken on July 14th, 1985 and on July 1st, 2015. Over those thirty years, I do not detect any advance or retreat of the oak forest along the ten miles between City Creek Canyon, Red Butte Canyon and Wire Mountain.

The oak forests surrounding Salt Lake City and in City Creek Canyon are extending their range, but only on selected lower Gambel oak chaparral slopes facing the city. Generally, the oak forest is stable and is not expanding.

* * * *

Per Thoreau’s “Journal” on June 24th, 1852, he observes clouds and describes the virtues of watching clouds. He smells fragrances blowing off a meadow, and notes that twin flower (Linnaea borealis) is past its peak bloom. On June 24th, 1853, he notes that birds use hair to line their nests. On June 24, 1856+, he notes that the surface of springs are covered with dust and insects. On June 24, 1857, he examines a screech owl nest. On June 24, 1860, he sees young bluebirds.

* * * *

In 1949, Christensen examined the distribution of Gambel’s oak forests along the Wasatch Front, and he concluded that the oak forests had in some local instances proliferated since the arrival of the Euro-American colonists (id. at 64). He found increases in maples on the Oquirrh Mountains on the west side of Salt Lake valley. Generally, Christensen concluded that most of the increases occurred after 1900 (Rogers, 19). In 1984, Rogers at Columbia University re-examined the question in light of the then developing question of climate change. He compared 49 historical images with some 400 contemporary matching photographs. Based on images hillsides near Tooele and west of Lone Peak, Rogers concluded that both Big Tooth maples and Gambel’s oaks were expanding at selected locations (Rogers, p. 136 and Plates 43, 45, and 46).

Rogers speculated, while calling for further research, that the cause of the expansion of Big Tooth maples and Gambel’s oaks was increased precipitation (Rogers, 136-137). He felt that although difficult to show with certainty, that improved fire suppression by modern Utahans was not the cause of the increase. The rate of fires after 1900 had been constant despite a ten-fold increase in fire suppression funding (id. at 140). In theory, the cycle of fire followed by rapid cheat grass invasion should slowly erode the boundaries of the existing oak forest. Rogers’ offered the tentative explanation that extreme cold weather in the late nineteenth century may have overwhelmed the negative effects of overgrazing and fire, and colder weather allowed the oak forest and maples to expand (Rogers, 138-139).

Rogers’ 1984 hypothesis is consistent with later, recent tree ring studies in the Intermountain West that reconstructed a 576 year precipitation record for Rocky Mountains, including Utah (Bekker et al 2014, DeRose et al, Wang et al; see January 30th and February 9th). From the tree rings, Bekker et al found that persistent, severe droughts were far more prevalent in the distant past than in the 150 years of Euro-American presence in northern Utah. The local advances of Big Tooth maples and Gambel’s oaks may have been a long-term, delayed response to more frequent rain and snow. However, beginning in 1984, the year that Rogers published his results, the number of acres annually burning in Utah has an increasing upward trend (Utah Department of Agriculture and Food 2013 at 8).

Rogers’ fire-invasive grass theory, Bekker et al’s climate findings, and the increasing trend in the number of acres annual burned in Utah wildfires raise the question of whether the maples and oaks will retreat in the future. Utah will become drier in the future, and whether that trend is the result of regression to the mean of past temperatures or human induced global warming is irrelevant. Whatever the cause, if annual temperatures increase, the oaks and maples should retreat uphill. In City Creek Canyon, rising temperatures will cause the oak groves near the ridgeline to retreat and in the Wasatch lower montane habitat that hugs the canyon’s stream, the mixed oak forest will contract closer to the stream’s banks.

* * * *

On June 24th, 1994, in a historical piece for the Salt Lake Tribune, Jack Goodman concluded that the “Lone Cedar” tree at 300 South 500 East was probably a pinyon pine.

June 24, 2017

June 23rd

Filed under: Cheat grass, Fire, Guardhouse gate, Jupiter, Stream, Western tent caterpillar moth — canopus56 @ 6:06 am

Canyon Habitat Overview

9:45 p.m. The heat wave has temporarily broken and temperatures fall in the eighties degrees Fahrenheit. I take only a short walk in the canyon’s summer late-evening twilight, and enjoy the coolness of night. The stream has gone down by two-thirds since the end of snowpack melt on June 4th. It must half again before the minimum flows of summer, at about 12 cubic feet per second, are reached. Now the stream runs only from underground water seeping from underneath both halves of Salt Lake salient. True darkness does not come until 10:15 p.m., and when it finally does arrive, bright Jupiter hangs over the road to the south like a guiding star. During the winter, Venus played that role (January 30th).

As I return to Guardhouse Gate, a large 4 inch moth is resting near the guardhouse lights. Its coloration is spectacular gradation of gray and ruddy brown, and it has large green frilled antennae the size of a woman’s pinky finger. It is a Western tent caterpillar moth (Malacosoma californicum). I have seen none of its characteristic tent colonies on trees in the canyon, but looking back through my photographs, I saw the caterpillar form of this moth on May 24th.

Reaching my car, city parking enforcement has left me a warning citation for parking at Guardhouse Gate after 10 p.m. Even five years ago, this would have been laughable, and throughout the winter this parking regulation was never a problem. But now the ridgelines are covered in early two feet tall dry cheat grass. A small spark could cause a brushfire that in the past have burned between 20 to 200 acres, or about one-third of a square mile. The city wants to deter summer nighttime revelers from entering the canyon in order to prevent them from starting campfires or lighting sparklers or other fireworks. Today, there are over 1,500 acres burning in Utah, about half of which I estimate are Cheat grass brush fires, and on arriving home tonight, the news reports a 100 acre grass fire in the Gambel oak chaparral above Farmington, Utah, about 20 miles north of the canyon.

* * * *

Per Thoreau’s “Journal” on June 23rd, 1840, he hears a young golden robin. On June 23rd, 1860, he notes that night hawks fly in a path similar to butterflies. He describes three types of cinquefoil. On June 23, 1852, he hears a bobolink and an owl. He sees mountain laurel and partridge berry (Mitchella repens) in bloom. He smells wild rose, sweet briar, blue geranium, and swamp pink. He notes that the undersides of leaves, particularly of the aspen, are lighter than the top side. On June 23rd, 1853, he sees leaf-heart and loose strife. On June 23rd, 1854, he sees three broods of partridges. On June 23rd, 1856, he sees baywings.

* * * *

City Creek Canyon is an undeveloped east-west trending canyon that extends 12 miles from Salt Lake City’s downtown business district. The canyon clefts the Salt Lake salient, an east-west trending spur of the north-south running Wasatch Front Mountain Range. The salient was created by an earthquake faults, principally the Pleasant Valley fault, deep below the canyon that is also perpendicular to the main north-south running Wasatch Fault. The canyon defines the northern end of the Salt Lake valley. A similar fault at the south end of the valley created the Traverse Mountains, another east-west salient that defines the boundary between Salt Lake County on the north and Utah County on the south. The difference between the Traverse salient and the Salt Lake salient is that limestone formations that are the bedrock of Salt Lake salient allowed water to flow down the middle of the ridge, and over geologic time, water flows carved out a canyon that clefts the salient in two. The canyon bottom begins at the city near 4,300 feet in elevation and rises to about 6,000 feet in elevation another 8 miles up canyon.

There are four principal habitats in the canyon. At the lowest elevations are grasslands mixed with sagebrush that covered the valley floor before pre-European colonization (Christensen 1963). These grasslands spread up both sides of the canyon walls and ridgelines through canyon mile 6.0 where water is insufficient to support the drought tolerant Gambel’s oak forest. It includes Bluebunch wheatgrass (Pseudoroegneria spicata a.k.a. Agropyron spicatum), Wild bunchgrass (Poa secunda), invasive Cheat grass (Bromus tectorum), and Big sagebrush (Artemisia tridentata) (Christensen 1963, Rogers 1984).

The second habitat by elevation is Wasatch chaparral that is dominated by pure stands of Gambel’s oak trees (Quercus gambelii) (Hayward 1945; Christensen 1949). Such stands can be found around the base of and to the north of Ensign Peak. They continue below the western ridgeline of the Salt Lake salient to milepost 2.0.

The third habitat is Wasatch lower montane (Hayward 1945, p. 10; Hayward 1948; Rogers 1984). This habitat is a mid-elevation association between 4,500 feet and 8,000 feet above sea level that consists primarily of dwarf Gambel’s oak trees mixed with Norway maple trees (Acer platanoides), and Big Tooth maple trees (Acer grandidentatum) (Hayward 1948; Ream 1960). In City Creek Canyon, this habitat begins at the Guardhouse Gate and continues up to approximately milepost 4.0. On the shaded north facing slopes of the canyon, water-loving maple trees dominate. On the sun-exposed south facing slopes, Gambel’s oak trees that have deep water-seeking tap roots dominate. Between the two slopes and surrounding the canyon’s stream is a mixed community of oaks, maples, Box Elder trees (Acer negundo), Rocky Mountain narrowleaf cottonwood trees (Populus angustifolia), and Western water or River birch trees (Betula occidentalis). Bohs at the University of Utah has prepared an extensive list of plant species in City Creek Canyon near the Guardhouse Gate (Bohs 201).

The fourth habitat begins about 6 miles up canyon, or four miles above the Guardhouse Gate above Bonneville Drive, where the Wasatch oak community gives way to Wasatch upper montane habitat (Hayward, 1945). This habitat is includes Lodgepole pine (Pinus contorta Dougl.), Douglas fir (Pseudotsuga menziesli) and Quaking aspen trees (Populus tremuloides) (Hayward 1945, Hayward 1948). On shaded north-facing slopes conifers dominate, and on sunny south-facing slopes Aspens dominate with some Utah juniper trees (Juniperus osteosperma.

The Gambel’s oak trees in the vicinity of City Creek Canyon are all dwarfs. Gambel’s oaks can grow to be mature trees thirty or forty feet in height, but where they are limited by water or other environmental stresses, then they reach only about ten feet in height (Christensen 1949). Christensen also noted that the seeds of these oaks while not germinate if they fall under the shade of an existing tree, but that does not limit the rate of their expansion. He observed many species distributing Gambel oak acorns, such as Western scrub jays, rock squirrel (Spermophilus variegatus), and Lewis woodpeckers (Melanerpes lewis) (Christensen 1949). In the canyon during the winter, I have also seen mule deer (Odocoileus hemionus) and Wild turkeys (Meleagris gallopavo) browsing for acorns. Thus, the oak’s acorns are widely distributed, and other constraints like lack of water must constraint its growth. Because the Gambel’s oak’s acorns are randomly distributed around the perimeter of copse, copses of these oaks have a characteristic inverted bowl shape. The oaks are found either in these bowl shaped groups on chaparrals or in uniformly covered broad sections of hillsides. The Gambel’s oaks around Salt Lake City are at the northern limit of that specie, and so, their development is under constant limiting pressure from northern Utah’s climate.

This journal primarily concerns the Wasatch lower montane habitat in the first two canyon miles above Guardhouse Gate within 500 feet on either side of the stream. Over the course of a year, all of the four habitats are visited.

* * * *

On June 23rd, 2012, Smith’s Food King, a dominant supermarket chain in the valley, decides to no longer sell fireworks because of the risk they pose to starting fires on valley benches and in valley canyons, including City Creek Canyon (Salt Lake Tribune). On June 23rd, 2010, the 31st Wasatch Steeplechase run over Black Mountain was run (Salt Lake Tribune). The Steeplechase was begun in 1979 by McKay Edwards as a summer solstice celebration (id). On June 23rd, 1918, the Salt Lake Tribune featured a photographic story-advertisement extolling the pleasures of automobile driving up City Creek Canyon (Salt Lake Tribune). On June 23rd, 1899, a City Committee will investigate the lack of water on the east side due to problems in the distribution system for City Creek water (Salt Lake Tribune).

June 23, 2017

June 21st

Growth Spurts

6:45 p.m. In the cool of the late evening, I jog towards Pleasant Valley at mile 1.2. A Lazuli bunting (Passerina amoena) perches near the gate. Near mile 0.3, a flash of bright yellow on the outside of a tree catches the eye. It is a Yellow warbler (Dendroica petechia). At mile 1.1, I mistake plaintive calls for raptor chicks, but it is only the squawking of a pair of Western scrub jays (Aphelocoma californica).

The summer-like heat turns flowering plants. The leaves of Wild carrots (Lomatium dissectum), a.k.a. Fernleaf biscuitroot, are browning, and their seeds are turning a light purple. Curly dock weeds (Rumex crispus) have turned a deep brown. I admire Curly dock. It grows, flowers, and dies over only for a few weeks in the spring, but then its rich brown color accents the canyon throughout the rest of the year. Only in the early spring, does it finally succumb to winter’s weather, and then in a few weeks, it begins to regrow. Even the seeds of yesterday’s Milkweed have turned from a light green to a subtle purple in a single day. Foxglove beardtongues (Penstemon digitalis) that have delicate bell-like flowers have deepened in color from white to streaked pink.

Other plants respond to this initial summer heat with a growth spurt. Starry solomon’s seal plants (Maianthemum stellatum) have reached almost two feet in height. At the seep below picnic site 6, watercress (Nasturtium officinale) has grown four inches in height in just a few days. Scouring rush horsetails (Equisetum hyemale) along the road stand erect and have also reached two feet in height. At lower Pleasant Valley field, Wild bunchgrass (Poa secunda) is two to two and one-half feet high. Heat drives this rush.

Hovering other the Pleasant Valley field, a fleet of twenty Common whitetail dragonflies dart back and forth and play tag in the evening breeze. Their miniature relatives, Circumpolar Bluets (Enallagma cyanigerum) line the first mile roadside. Returning down-canyon, a Pinacate stink bug (Eleodes sp.), a.k.a. the Darkling sting bug, is running down the road. This is the first time that I have seen one fast motion, and usually they standing with their abdomens pointed into the air and ready to launch a chemical spray on predators. When running, its oversized rear legs make its large black abdomen comically waive back and forth. Since cars are banned from the canyon today, many bicyclists streak by heeding on caution for speed.

* * * *

Per Thoreau’s “Journal” on June 21st, 1852, he notes that adder’s tongue, a fern, smells like snakes. He hears a cherry bird. He sees a field with snap-dragon and he notes that lupines have lost their blooms. He hears thunder when there are no clouds in the sky. He collects morning glories. On June 21st, 1854, he notes the many smells in the air, including may-flowers and cherry bark. He compares how a stream bank has grown from a low covering of brown in spring to a thicket of weeds in summer. He finds a small pond with two pout fish and a brood of small fry. He describes a sprout forest – a forest of small sprouts that grows from fallen trees. He sees wild roses. On June 21st, 1856, he sees night hawks, and on June 21st, 1860, he observes pine pollen covering the surface of water.

* * * *

On June 21st, 2000, Mayor Rocky Anderson held a press conference urging Congress to pass a bill that would designate a portion of offshore federal oil revenues to fund improvements in local parks like City Creek Canyon (Salt Lake Tribune). On June 21st, 1995, Rotary Club members repainted benches at Rotary Park in City Creek Canyon (Salt Lake Tribune). On June 21st, 1994, a 19 year-old man was robbed at knife point by his passenger after they drove to City Creek Canyon (Salt Lake Tribune). On June 21st, 1934, Street Commissioner Harold B. Lee referred a proposal by former City Engineer S. Q. Cannon to employ road crews to widen City Creek Canyon Road to the Depression Federal Emergency Recovery Act Bureau (Salt Lake Telegram). On June 21st, 1912, City Parks Commissioner George D. Keyser proposed a circular scenic boulevard be created up City Creek, along 11th Avenue to Fort Douglas, then to Sugarhouse, and then returning to the City’s center (Salt Lake Tribune, Salt Lake Telegram). The route would be lined with trees (id). On June 21st, 1906, City Engineer Kelsey reported that 100 miles of sidewalks will be completed in the City this year and another 25 miles of roads will be paved or graveled (Salt Lake Telegram). A minor $1,000 project will construct a bridge in City Creek Canyon (id).

June 20th

Summer

First Day of Summer

External Link to Image

Comparison of City Creek Canyon Road near Mile 1.1 in Winter on November 24th and on the First Day of Summer, June 20th.

6:00 p.m. It is nearly 100 degrees Fahrenheit on this first day of summer. Although this is the longest day of the year, and the amount of total light is four times the amount of light that occurs on the winter solstice (March 21st), this is usually not the hottest day of the year. The Earth continues to absorb the sun’s heat by melting at the poles, and thus, the hottest days of the year with 100 plus degrees Fahrenheit are lagged by three or four weeks to the end of July. But the recent heat wave is an unusual preview of the coming summer hottest days. Today, and more typical of late July, the heat boils the water from the land, and in the afternoon, great cumulus clouds rise and re-deposit the day’s water during the cool of the evening. As I approach the canyon, the sky to the west is gray and boiling. The bottom of the cloud layer swirls in confused eddies and circles. Winds rage and the trees wave back and forth as if they are in a current below the surface of the ocean. Only the large Common whitetail dragonflies (Libellula lydia) hover in the strong breeze. The whitetail’s are misnamed; their tails are more often black. From the safety of the leaf screened branches, Song sparrows, Chirping sparrows and Black-headed grosbeaks call. First, the air smells of summer, but then it mixes with the rain primed, fresh moisture. Small spatters fall, and then a brief deluge comes. Runners on the road, including myself, jog without their shirts on. The afternoon storm passes, the air clears, and all is renewed.

Along the first mile road, Milkweed plants have grown large, fecund seed heads.

* * * *

Although Thoreau declares summer to begin informally on June 1st (see his “Journal” on June 1st, 1853), astronomically summer begins on June 20th. Per Thoreau’s “Journal” on June 20th, 1840, he sees mica particles glittering in sand. On June 20th, 1852, he notes blue-eyed grass flowers are closed in the before sunset, and he hears an American Bittern drumming on wood. He notes that grass fields are red tinged because the grass has gone to seed. On June 20th, 1853, he sees meadow-sweet flower and water lilies. During a full Moon walk, he admires how water reflects black under moonlight. He encounters a skunk. He notes that elm leaves and trunks have the same hue under moonlight.

* * * *

On June 20th, 2011, the Salt Lake Tribune published a historical article on George Ottinger, founder of Salt Lake’s fire department and later in the early 1900s, Salt Lake City’s Superintendent of Waterworks. He lived in an adobe house on 3rd Avenue and E Street. As a young man, Ottinger was an adventurer. He traveled as a sailor to China, Hawaii, the Indonesian Islands, and Panama, before returning for a late California Gold Rush (id). Omitted from this article is Ottinger’s witnessing of the last 1887 lynching of a man in downtown Salt Lake City. On June 20th, 1999, Utah Jazz assistant coach Mark McKown was injured while speeding down City Creek Canyon a bicycle (Salt Lake Tribune). He was accompanied by Utah Jazz star basketball player Karl Malone. On June 20th, 1998, City Creek Canyon was closed for three days after torrential rains caused a mudslide (Salt Lake Tribune). On June 20th, 1908, City Engineer L.C. Kesley budgeted 9,000 USD to extend an iron pipeline from State Street to City Creek Canyon Road and 50,000 USD for a distributing reservoir in City Creek (Salt Lake Herald). On June 20th, 1896, ore samples taken from the Willard Weihe claim in the Washington mine group, 1.5 miles north of Eagle Gate in City Creek Canyon, assayed at 94 and 84 USD per ton (Salt Lake Herald).

June 19th

Filed under: Astronomy, Birds, Geology, Insects, Mammals, Microbes, Mollusks, Plants, Seasons — canopus56 @ 9:18 am

Last Day of Spring and a Walk Through Time

3:00 p.m. It is the last day of astronomical spring, and the canyon has completed its seasonal growth spurt, has become pregnant, and is readying itself for the coming stress of summer’s heat. Today, as I sometimes do, I see a walk through nature as a walk through geologic time and the history of life. The canyon contains living refugees from each major geologic period.

The seep below picnic site 6 contains slimes, molds, bacteria and protozoa from the Hadean Eon to the Precambrian period in the Neoproterozic, 530 million years ago. There are 2.2 x 10^30 prokaryotes in the 4 kilometers of Earth beneath my feet from that era (December 20th), and another 7.2 x 10^24 microbes in the 4 kilometers of air above my head (id). The orange lichens on the Gambel’s oak trees also come from this time. The mosses also that adorn the oaks and that live on rocks in the stream come represent life’s first steps onto the land in the Ordovician period 485 million years ago. The trout in the stream represent the arrival of fish in the Silurian period 443 million years ago. The horsetails by the side of the road represent the vascular plants that also migrated to the land during the Silurian periods.

Insects first appear during the Devonian about 400 million years ago. The canyon’s conifers represent the Carboniferous period beginning about 350 million years ago. The Permian period beginning about 290 million years ago when mollusks arrived is represented by the Common garden snails seen crossing the road. The Permian is also when insects like the Variegated Meadowhawk dragonflies arose.

The Mesozoic era, including the age of the dinosaurs during the Triassic, Jurassic, and Cretaceous periods, began about 250 million years ago. Presently, the dinosaurs are represented by their descendants, the many birds of the canyon. The many flowering plants and trees in the canyon first appeared during the Cretaceous, 130 million years ago. The late Cretaceous is represented by the canyon’s Western rattlesnakes and Western ground snakes (Sonora semiannulata). Small mammals like the Rocky Mountain deer mice and Rock squirrels also first appeared during that period.

The Cenozoic era, including the Paleogene period that began forty million years ago, is represented by the canyon’s many butterflies. The Neogene period that began about 25 million years ago is represented by the grasses along the road. The early Quaternary period, the Pleistocene, that began about 2.5 million years ago, are represented the canyon’s coyotes, mountain lions and black bears. The late Quaternary, the Holocene, is represented by homo sapiens, myself and the other walkers and runners on the road.

In the last 500 million years, the Earth has rotated around the core of the Milky Way two times. Life remains persistent, infinite, incomprehensible, and irrepressible.

* * * *

Per Thoreau’s “Journal” on June 19th, 1852, he notes that clover, buttercups and geraniums are at their peak. Grapes and mullein are blooming. He hears robins and walks across a summer-dried swamp and collect orchids. On June 19, 1853, blue-eyed grass, a small iris, is blooming. He sees a blue jay, a tanager, and a cucokoo. He hears a night warbler and a bobolink. On June 19th, 1854, he admires a distant thunderstorm. On June 19th, 1859, he observes a squirrel nest and its young, and he sees a partridge. On June 19th, 1860, he follows a fox track back to its burrow.

* * * *

On June 19th, 1993, the 14th annual Wasatch Steeplechase was won by Tom Borschel with a time of 2:02:50 (Salt Lake Tribune, June 20, 1993). On June 19th, 1992, the City and the L.D.S. Church develop a master plan that proposed a five block parkway with City Creek raised to the surface (Salt Lake Tribune). The Tribune notes an enlarged underground conduit was installed after the 1983 floods along North Temple (id). On November 19th, 2006, a human skill was found by tree-trimming crews working in City Creek Canyon, and a subsequent search failed to find any other remains (Deseret News). On June 19th, 1925, the City condemned land at the mouth of City Creek Canyon (Salt Lake Telegram). On June 19th, 1917, the City reopened City Creek Canyon after initially closing the canyon out of concerns that terrorist saboteurs might harm the City’s water supply (Salt Lake Telegram). On June 13, 1913, in support of a national education convention held in the City, Parks Commissioner George D. Kesyer plans to open City Creek Canyon road to automobiles (Salt Lake Tribune). Prison labor will be used to improve the road (id). On June 19th, 1903 in a lengthy statement, City Engineer L. C. Kelsey described the risk to the City of flooding from a cloudburst after hundreds died in a cloudburst flood in Heppner, Oregon:

“A part of the city is located at the mouth of City Creek canyon in such a position that a heavy cloudburst in the canyon would send a wall of water into the city that would cause a heavy loss of probably both life and property.”

“I understand that cloudbursts in former years have done considerable damage, but nothing of that kind has ever happened while I have been here.”

“A cloudburst of any considerable magnitude would do almost incalculable damage, and I cannot see how it could be avoided.”

“There is no possible way to divert such a stream without an enormous expenditure of money. If unlimited means were at hand the question would have to be most carefully considered. I would not suggest any means of reaching this end without studying the situation. Means, however, could certainly be devised.”

“A war of water coming down the canyon, similar to that at Heppner, would sweep everything before it. Residences in the canyon’s mouth would fall like card houses and the wave would then sweep down North Temple and State streets. The greater volume would go down the former and the wall surrounding Temple square would melt before it.”

“The Temple itself, the basement at least would be inundated and havoc would be played there. The water going westward would soon spread, but incalculable damage and perhaps heavy loss of life would mark its path.”

“The lesser volume would go down State street, spreading ruin in its course, until it, too, had dissipated.”

“While such a thing is not probable, it is altogether possible, as the city in a climatic belt where cloudbursts could be well expected. Such things cannot, however, be foreseen” (id).

On June 19th, 1895, Watermaster Commissioner Heath reminds citizens that no fishing is allowed in City Creek Canyon (Salt Lake Tribune). On June 19, 1894, the Lady Rosalind Stearns bicycle race was held up City Creek (Salt Lake Tribune). Three racers went up the canyon at full speed, and the winner was forced by exhaustion to dismount at seven miles up the canyon (id).

June 17th

Filed under: Douglas Fir, Gambel's Oak, Lodgepole pine, Maple tree, People, Runners, Wild bunchgrass — canopus56 @ 4:25 am

Masters of the Wasatch Steeplechase

8:00 a.m. It is Saturday, and in the cool morning air, birds are active. Black-headed grosbeaks and Song sparrows are the most common. This morning is also the 39th running of the Wasatch Steeplechase (Adams 2017). The Wasatch Steeplechase is purist running event whose 17 mile path goes up the south part of the Salt Lake salient, over the limestone knife edge at the top of Little Black Mountain, down Smuggler’s Gap, and then out the City Creek Canyon Road. Over the course, about 3,000 feet in elevation is gained and lost. Unlike other Salt Lake City running events, there is no registration packet, no inflated air start and finish line blasting loud rock music, and no prize money. About 200 runners just show up at Memory Grove Park at 6:00 a.m. and start. Participants tend to be lean ectomorphs between the ages of 25 to 50 years old, and the best finish the race in about two hours and fifteen minutes. Last place finishes in about six hours. The purist ethic of the race is reflected in its liability waiver agreement:

“Whereas, participation in the annual Wahsatch Steeplechase is a privilege and sacred ritual in celebration of the Summer Solstice and, whereafter, the undersigned acknowledges the uniquely and hazardous nature of the race course, including raging streams at full flood, wicked sagebrush, poisonous snakes, and precipitous crags, and has inspected the course or in the alternative freely assumes the risk or failure to inspect the course” (Adams 2017).

I am a stocky American football player-like endomorph. Although I have solo-run the track (in reverse direction) about nine times in the last forty years, my best jogging time was somewhat more than six hours, but each time the route was both an inspirational and mystical experience. First, the route goes up seven miles along the City Creek Canyon Road to the end of the paved road through both the Gambel’s oak and maple forest. Then a near vertical trail leads 2,000 feet through an upper montane forest of Douglas firs and Lodgepole pine trees that is thick with Stellar jays. Then the route goes along a knife-edge ridgeline for one-half mile along the top of Little Black Mountain. Here, one must boulder back and forth along limestone ledges that tilt downhill and away from the direction of travel. In most places, a slip means a fall of ten to twenty feet onto a sixty degree slope. Survivable, but something to be avoided given the difficulty of extraction from this high mountain. Next is a about ten miles stretch under the watchful eyes of hawks and eagles that descends back through a Pinyon Juniper forest, along the Wild bunchgrass southern salient past the Little Twin Peaks, and then back through the Gambel’s oak forest to the canyon bottom. Along the summit and south salient, expansive views of the urbanized Wasatch Front cities, the Great Salt Lake, and the Bonneville flats extend at most one-hundred and fifty miles. In some years, dramatic summer storms flow across the Great Salt Lake dropping streamers of lightening from gray and black clouds. The route is a tour-de-force of the many of the Great Basin’s habitats. The Steeplechase is less of a run and more of a spiritual experience brought on by fatigue, dehydration, strong summer sunlight, and exertion at altitude. After each traverse of the route, I fall into a meditative, contented state for one, and if I am lucky, two days.

In September, another extreme race, the Wasatch 100, goes from 100 miles from Farmington, north of City Creek Canyon, along the upper headwaters of the canyon, and onto Park City, Utah, a mining town turned upper income ski-resort. The maximum allowed finishing time is 36 hours. Unlike the Steeplechase, the Wasatch 100, which is beyond my physical capabilities, has a more tradition competitive road-race feel, and by disposition, I have always favored the Steeplechase.

* * * *

Per Thoreau’s “Journal” on June 17th, 1852, he notes that crickets sing loudly in the morning after hot summer nights. He sees or hears a brown thrasher, a red-eye, an oven-bird, and a wood thrush. Citus are blooming. He notes how a boulder has made a micro-habitat in which several tree seedlings have taken root. On June 17th, 1853, he notes that pogonias, adder’s tongue, blue-eyed grass, lambkill and mountain laurel are at their peak. He records an egg in a night-hawk nest has hatched. On the morning of June 17th, 1854, he feels dew covered grasses and sees cobwebs hanging across the grass.

* * * *

On June 17th, 2000, the First Congregational Church planned to hold its annual outdoor service in City Creek Canyon. On June 17th, 1915, P. J. Moran was awarded the contract to build the reservoir at Pleasant Valley for the sum of $18,209.59 (Salt Lake Telegram). On June 17th, 1915, a locomotive was hauled to the capitol grounds along newly constructed track along the west side of City Creek (now East Capitol Street) to begin grading for the new state capitol building (Salt Lake Herald). On June 17th, 1894, the City changed from having a staff of full-time water tankmen (who clean water tank filters) to a part-time staff of day and night patrols (Salt Lake Herald).

June 16th

Partial Success in Treating Starthistle

3:00 p.m. The field at lower Pleasant Valley (mile 1.2) where the Utah Conservation Corps and the city watershed officials have done Starthistle abatement (May 17th, May 21st, October 16th) has both succeeded and failed. The horizontal field at Pleasant Valley has filled in with new native grass, Wild bunchgrass (Poa secunda), many smaller wildflowers and also the invasive Western salisfy. The lower field is an idyllic scene, but because the field has been sprayed with Milestone herbicide (Aminopyralid), the Peregrine falcons are not hunting here for Rocky Mountain deer mice as in prior years.

The green of the lower field climbs up the hillside, and this is also an area where the Utah Conservation Corps manually pulled starthistle weeds. I cross the field to the slope to take a better look, and to my surprise, the treated vertical slopes have three or four times the density of starthistle plants as compared to the slope’s pre-treatment state last year. Other treated steep slopes to the west of Pleasant Valley are in a similar condition. Limited to steep slopes, the abatement project is a failure. Probably only a burning with reseeding can rehabilitate such slopes, but citizens in nearby residential areas rejected a burn control approach proposed in 2010 (see Salt Lake City Department of Public Utilities 2010). Conversely, expensive manual pulling in conjunction with Aminopyralid spraying worked on horizontal fields (see Utah Watershed Restoration Initiative at May 21st).

I am also concerned that the use of Aminopyralid might be detrimental to the Peregrine falcons, Cooper’s hawks or Western screech-owls that utilize this field. Earlier this year, while with the Tracey Aviary bird count team (May 6th), I saw a Peregrine falcon hunting above this area, and in spring of 2015, a pair of peregrines would regularly sit on the power line wires above the field. One afternoon, one of the pair dived on the field, and then slowly rose beating its wings while grasping a fat deer mouse in its talons. The second falcon left its perch, swooped up from below of the first falcon and extended its talons. This startled the upper falcon and caused it to release its catch. The lower falcon, while flying inverted, expertly caught the mouse and flew off with its prize. Research later in this evening locates a 2007 United States Forest Service sponsored assessment of the effect of this herbicide on birds, principally by literature review (Durkin 2007). Since birds have a short-life span (Peregrines and Cooper’s hawks both live about twelve years), testing consists of applying a variety of doses of the chemical to test species. In the instant of Durkin’s review, a 2003 prior study force fed quail with a 50 percent lethal dose of Aminopyralid (id, pp. 96-97 and 4-1 to 4-6). The quail grew disoriented in the short term, but survived. In another study using high doses on hatchlings, success to viability declined up to 30 percent. Other lower dose studies did not find any significant effects. The consultant recommended exposure levels for humans, birds, and mammals based on prior works. Based on this limited study, my concern about using Aminopyralid around Peregrines and Cooper’s hawks were assuaged. Aminopyralid is not another DDT.

* * * *

Per Thoreau’s “Journal” on June 16th, 1852, he records a morning fog with singing birds, and he remarks on how evening mornings are now hot. In the night, he sees an aurora borealis to the north. On the morning of Per Thoreau’s “Journal” on June 16th, 1853, he hears robins, birds, other birds, and crickets. He sees sunlight reflecting off a stream that makes the stream appear as silver metal (compare Dec. 26th, in main text, above). He extracts a red squirrel from its underground nest. Per Thoreau’s “Journal” on June 16th, 1854, he sees fleabane. The Utah version is Utah fleabane, Eigeron utahensis. He sees white lily and two variants of wild rose. He hears a cherry bird. Per Thoreau’s “Journal” on June 16th, 1855, he sees young squirrels. Per Thoreau’s “Journal” on June 16th, 1858, he smells blackberry blossoms, and on June 16th, 1860, he notes summer thunderstorms are now a common occurrence.

* * * *

On June 16th, 1997, the U.S. Forest Service revives the Anschutz Ranch East Pipeline Environmental Impact Analysis after a consultation disputes Chevron’s claim that an existing pipeline has sufficient capacity to handle all loads for the next fifty years (Salt Lake Tribune). On June 16th, 1919, there was a large grass fire in City Creek Canyon (Salt Lake Herald). On June 16th, 1915, bids were opened for the construction of the reservoir at Pleasant Valley (Salt Lake Telegram). On June 16, 1910, the Little Giant Mine petitioned the City council to open a mine in City Creek Canyon (Salt Lake Herald). On June 16, 1904, a bear destroyed a camp at the forks in City Creek Canyon, and Ben D. Luce and party hunted the bear (Salt Lake Telegram). On June 16, 1881, J.J. Branch, a former L.D.S. Church member who was present at Joseph Smith’s death, now turned evangelist, held a revival at a tent in Salt Lake City, at which he predicted that God would send a great flood from City Creek Canyon and destroy the City in retribution in retribution for the “wickedness and lying and blasphemy and abomination” of the L.D.S. church (Salt Lake Tribune). On June 16, 1897, George Crimson, a still living 1847 pioneer, relates his biography (Salt Lake Herald). In the spring of 1848, Crimson and his father built the first grist mill in City Creek Canyon, and sold the same to Brigham Young (id). He left for the California gold rush in 1849.

June 22, 2017

June 15th

First Day of the Estival Season

4:30 p.m. It is the first day of the Estival ecological season, the time of greatest heat (Feb. 16th). Astronomical summer begins on June 20th. The late spring heat wave continues and temperatures in the low nineties. I drive to the canyon for short jog, and as I exit the car, my senses are assaulted. The top of a large Douglas fir is heavy with new cones. A Rock squirrel scampers across the parking lot. Curly dock is turning its summer brown. Several Western tiger swallowtails chase each other. Cabbage white butterflies wind between tree branches. A Song sparrow sings loudly. For the first time this year, the air smells of summer and of greenery under hot a sun. All of this occurs within the first quarter of a minute.

The stream’s flow is dropping, but its depth is medium. At the base of the fir, its pine cones also show the Fibonacci whirl pattern seen in bull thistle blossoms (June 10th). The blossoms of Solomon seal plants along the first mile are fading, and some of the plants are beginning to brown.

With the addition of the last summer quality, heat, the canyon is transformed by insects. Previously, light has been increasing throughout spring, and melting snow and violent storms have added water. Heat is last elemental that completes the canyon’s return to prolific life after last winter’s sleep. The first mile has become a boulevard of butterflies. There is a mini-explosion of Cabbage white butterflies in the first quarter mile, and about twenty line both sides of the road. They are joined by Painted lady and Spring azure butterflies. An unidentified yellow butterfly with a black band on its trailing wing line flutter. In the Yellow sweet clover and Red clover weed (Trifolium pratense), which is a purple-blue invasive in Utah, are laced with Yellow-jacket wasps and domestic Honey bees. Above my butterfly escorts, a new large, brown dragonfly with black-spotted wings has matured. These are massive for a flying insect – about three inches across. These are female Common whitetail dragonflies (Libellula lydia). A large four inch mosquito, the common Floodwater mosquito (Aedes vexans), has perished on the road, and since it is unmoving, I can examine its otherworldly structure. This nationally-distributed Floodwater mosquito is a secondary vector for dog heartworm, and more recently in states other than Utah, it has been implicated as transmitting West Nile virus. In Utah, the common House mosquito (Culex pipiens) is the primary vector of West Nile. I am walking through a garland of butterflies.

* * * *

Per Thoreau’s “Journal” on June 15th, 1840, he admires the reflections of trees in water. On June 15th, 1851, he sees the first wild rose of the season, blue-eyed grass, yarrow, blooming lambkill, and Solomon’s seal. He lists a series of spring flowering plants. On June 15th, 1852, he hears crickets and sees dandelions, fleabane, sorrel and purple orchids blooming. He hears a seringo and a hawk. At night, he sees fire flies and the reflection of a bright star in water. On June 15th, 1853, he notes that clover is at its peak and sees many wild roses in bloom. On June 15th, 1854, he notes that birds are singing less. On June 15th, 1858, he notes wool grass growing in a meadow.

* * * *

On June 15th, 1909, a teamster, William Luther, had his legs crushed in an truck accident while hauling gravel along City Creek Canyon Road. On June 15th, 1902, the Salt Lake Tribune argues in favor of residents using filters to better purify domestic water, in part coming from City Creek Canyon.

June 14th

Filed under: Foxglove beardtongue, Horsechestnut, Seasons, Western salisfy, Wild carrot — canopus56 @ 9:20 pm

End of the Vernal Season

6:45 p.m. This is the last day of the vernal season, or the time of the year in which plants grow at their greatest rate (Feb. 16th). An early heat wave near 100 degrees Fahrenheit has fallen on the city, and I have come to the canyon for a short run in the cool evening air. At the end of the vernal season, early spring flowering plants in the first mile have largely passed and their thickened ovaries grow pregnant with this year’s seeds. Wood rose blossoms are shriveled or have have dropped their leaves, revealing bulbous green spheres beneath. The largest of these are the infant berries of the chokecherry bushes. Western salisfy, also called Giant dandelion, has almost all gone to seed. Its blossom have transformed into a large compound head of achenes – larger version of dandelion weed seeds. The small floating seeds grow out equally spaced from an inverted saucer-shaped head. A result of the large floater seeds competing for limited space is that the giant dandelions’ spherical heads form geodesic dodecahedrons.

The base leaves of the Wild carrot (also called Fernleaf biscuitroot) plants that line the first mile have turned turned yellow and orange, and their blossoms have formed seeds that are turning from green to a light purple. Their fibrous tap roots extend beneath the surface for about a one foot, and they were widely used by First Peoples throughout the Intermountain west (Natural Resources Conservation Service 2011). Great Basin Indians ate the seeds and boiled the roots to make a drink. Other tribes used the first shoots in a salad (id). Modern city “foodies” also collect the plants.

A new delicate penstemon, Foxglove beardtongue (Penstemon digitalis) has appeared overnight along the road. This is an eastern native, and in the canyon, it first appears with white flowers that turn a streaked pink as the flowers age. This is a later spring replacement for the many failing flowers along the first mile. Horsechestnut trees now bear sprays of its spiked fruit, but these new fruits are miniature one-inch diameter versions of falls’ three inch spheres. This year’s growth has returned and the land is pregnant.

* * * *

In Thoreau’s “Journal” on June 14th, 1852, he notes that “[t]he twilight seems out of proportion to the rest of the day.” On June 14th, 1851, he lists birds heard on a twilight walk including bobolink, swallows, fifteen whippoorwills, blackbirds, a robin and night hawk. He contrasts the evening song of the robin with crickets, and notes fish rising in a stream to feed on insects. On June 14th, 1852, he sees a wild rose bush. On June 14, 1853, he hears the season’s first locust and observes aphids on tree leaves. He sees white lily, blue-flag flower, mosquitoes, and fish in the stream. He sees hummingbirds and hears a cuckoo, a red-eye, and a wood thrush. On June 14th, 1854, he sees a cicada. On June 14th, 1859, he sees a grosbeak and a pout’s nest.

* * * *

A cousin of Foxglove beardtongue, Common foxglove (Digitalis purpurea), is the source of digitalis heart medication. Digitalis is commonly used to strengthen the contractions of the heart muscle in the aged.

* * * *

On June 14th, 1914, the Salt Lake Tribune describes various outdoor hikes around Salt Lake City, including to Big Black Mountain. On June 14th, 1908, the L. H. Murdock of the U.S. Weather Service reported a storm with one-half inch of rain and heavy snowfall in City Creek Canyon (Salt Lake Tribune). On June 14th, 1908, Mayor Bransford, City Engineer L. C. Kesley, Waterworks Superintendent Hobday and Street Supervisor Jake Raleigh discussed steps to abate current flooding from City Creek Canyon (Intermountain Republican). Raleigh defended his use of manure embankments to contain the flood waters (id).

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