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19C -Youga loam, 0 to 6~ercent slopes. This is a deep, well drained,~arly level to gently sloping soil on
<br />mountainsides. It formed in glacial drift derived from various sources. The average annual precipitation is about 18
<br />inches, the average annual air temperature is about 37 degrees F, and the frost-free season is 30 to 75 days. Elevation
<br />is 7,500 to 9,000 feet.
<br />Small areas of Quander, Leavitt, Cimarron, and Anvik soils are included in mapping. Also included are areas
<br />that have 1 to 2 inches of peat on the surface and mottling in the subsoil as a result of continuous irrigation.
<br />Typically, the surface layer is dark grayish brown loam about 12 inches thick. The subsoil is yellowish brown
<br />and strong brown clay loam about 58 inches thick. The substratum is IigJtt yellowish brown sandy clay loam to a depth
<br />of 60 inches or more.
<br />Permeability is moderately slow, and [he available water capacity is high. Surface runoff is medium. The
<br />hazard of wind and water erosion is slight.
<br />Most of the acreage is rangeland that is also used for recreation, wildlife, andvrigated grass hayland. A cold
<br />climate and a short growing season limit the production of introduced grasses and produce use of this soil as cropland.
<br />Management of this soil for range should include a deferred grazing system and brush control. Where this soil
<br />is irrigated, ditches and fields should be designed carefully to properly control irrigation water. Grasses recommended
<br />for seeding include westem wheatgrass, slender wheatgrass, bluebunch wheatgrass, mountain brome, Arimna fescue,
<br />and big bluegrass. The dominant native vegetation consists of wheatgrass, ]unegrass, big sagebrush, snowberry, and
<br />numerous forbs. The total annual production averages about 1,600 pounds of air-dry forage per acre.
<br />There are no restrictive soil properties to be considered in the design of access roads and recreation homesite
<br />sub- divisions. However, all-weather asphalt surfaces are impractical unless provisions are made to offset frost action.
<br />Rangeland wildlife includes mule deer, sage grouse, white-tailed jackrabbit, mourning dove, ground squirrels,
<br />and yellow-bellied marmot. Capability subclass Vle.
<br />19F -Youga loam, 15 to 45 percent slopes. This is a deep, well drained, moderately steep and steep soil on
<br />mountainsides and ridges. It formed in glacial drift derived from various sources. The average annual precipitation is
<br />about 18 inches, the average annual air temperature is about 37 degrees F, and the frost-free season is 30 to 75 days.
<br />Elevation is 7,500 to 9,000 feet.
<br />Small areas of Quander, Leavitt, Cimarron, and Anvik soils are included in mapping. Also included are areas
<br />that have 1 to 2 inches of peat on the surface and mottling in the subsoil as a result of continuous irrigation.
<br />Typically, the surface layer is dark grayish brown loam about 12 inches thick. The subsoil is yellowish brown
<br />and strong brown clay loam about 53 inches thick. The substratum is light yellowish brown sandy clay loam to a depth
<br />of 70 inches or more.
<br />Permeability is moderately slow, and the available water capacity is high. Surface runoff is rapid. The hazard
<br />of wind erosion is slight, and the hazard of water erosion is high.
<br />Most of the acreage is rangeland that is also used for recreation and as wildlife habitat and irrigated grass hay-
<br />land. A cold climate and a short growing season limit the production of introduced grasses and preclude use of this soil
<br />as cropland.
<br />Management of this sail for range should include a deferred grazing system and brush control. Where this soil
<br />is irrigated, ditches and field layouts need to be designed carefully to properly control irrigation water. Grasses
<br />recommended for seeding include westem wheatgrass, slender wheatgrass, bluebunch wheatgrass, mountain brome,
<br />Arizona fescue, and big bluegrass. The dominant native vegetation consists of wheatgrass, ]unegrass, big sagebrush,
<br />snowbeny, and numerous forbs. The total annual production averages about 1,600 pounds of air-dry forage per acre.
<br />Slope is the most limiting soil property to be considered in the design of access roads and recreation homesite
<br />sub- divisions. Slope stabilization is ditTicult even where homes are constructed on nearly level pads. Surface runoff
<br />resulting from snowmelt increases the erosion hazard on cut and fill slopes. Seeding of vegetation minimizes the erosion
<br />hazard, but establishing a stand is difficult. Homes should be designed to utilize the existing slope and keep foundation
<br />cuts to a minimum. Roads should be designed to keep cut and fill slopes to a minimum and provide drainage outlets
<br />for excessive snow melt. All weather asphalt surfaces are impractical unless provisions are made to offset frost action.
<br />Rangeland wildlife includes mule cleer, sage grouse, white-tailed jackrabbit, mourning dove, ground squirrels,
<br />and yellow-bellied marmot. Capability subclass VIIe
<br />21F-Yovimpa clay loam, 15 to 45 percent slopes. This is a shallow, moderately well drained, moderately steep to
<br />steep soil on mountainsides and ridges. It farmed in material weathered from shale and slate bedrock. The average
<br />annual precipitation is about I4 inches, the average annual av temperature is about 37 degrees F, and the frost-free
<br />season is 30 to 75 days. Elevation is 7,500 to 9,000 Ceet.
<br />Small areas of Bucklon and Cimarron soils are included N mapping. Also included are small areas of shale
<br />outcrop and soils that are similar to the Yovimpa soil but have bedrock at a depth of 20 to 40 inches. Other similar
<br />shallow soils have no subsoil development.
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