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GRAND COUNTY AREA, COLOI ADO Grazing management and depleted rangeland. This site of steep slopes. This soil provides winter ray Other wildlife include sage gr and coyote. Managing livestc sagebrush are needed to pr range. Sleep slope, shrink-swell f are the soil properties most li opmenl. Road design should surface runoff. Cut and fill s minimum to avoid hillside slipl The capability unit is Vlle. ieferred grazing improve ahnot be seeded because 3e for mule deer and elk. use, jackrabbit, cottontail, k grazing and controlling sect the big game winter rlenlial, and low strength citing to community devel- rclude drainage outlets for rpes should be kept to a tge. 81-Tine gravelly sandy slopes. This deep, well drai sloping soil is on fans and 7,500 to 8,500 feet. It tormf average annual precipitation the average annual air temf degrees F, and the frost-freE days. Small areas of Harsha any in mapping. Also included Cryorlhents, Rock outcrop, a above 40 inches but are of soil. Typically the Tine soil ha gravelly sandy loam about 1 inches of the underlying n cobbly loamy sand. The loH sand that extends to 60 inch Permeability is rapid. The inches or more. The avail Surface runoff is slow, and Most of the acreage is rar recreation and wildlife. A sn used for hay. The cold clima limit the production of intros the use of this soil as cropla~ Muttongrass, bluebunch brush dominate the rangelar becomes dominant as range Grazing management is condition. Where range cone needed if there is enough where the grass is sparse, for seeding are Indian ricE streambank wheatgrass, th cent wheatgrass, crested H drye. The seed should be This soil provides winter Other wildlife include sage and coyote. Managing live: sagebrush are necessary tc range. loam, 0 to 3 percent ed, nearly level to gently terraces at elevations of i in alluvial outwash. The s about 11 to 14 inches, arature is about 37 l0 42 season is about 35 to 75 Leavitt loam are included re a few small areas of d soils that are calcareous envise similar to the Tine a surtace layer of brown inches thick. The upper 9 ,lerial is pale brown very ~r part is extremely cobbly or more. ffective rooting depth is 60 rte water capacity is low. re erosion hazard is slight. eland. Part of it is used for III acreage is irrigated and and short growing season Iced grasses and preclude j. •heatgrass, and big sage- 1 vegetation. Big sagebrush :ondilion deteriorates. seeded to maintain range lion is poor, brush control is bass to respond. In areas seeding is needed. Suitable bass, western wheatgrass, kspike wheatgrass, pubes- reatgrass, and Russian wil- irilled into a firm seedbed. rnge Tor mule deer and elk. rouse, jackrabbit, cottontail, ock grazing and controlling protect the big game winter 47 Large stones and seepage are the soil properties most limiting to community development. The capability subclass is Vls. 82-Tine cobbly sandy loam, 3 to 15 percent slopes. This deep, well drained, gently sloping to strong- ly sloping soil is on fans and terraces al elevations of 7,500 l0 8,500 fee[. The average annual precipitation is about 11 to 14 inches, the average annual air tempera- ture is about 37 to 42 degrees F, and the frost-free season is about 35 to 75 days. Small areas of Rarsha loam and Leavitt loam are in- cluded in mapping. Also included are a few small areas of Cryorlhents, Rock outcrop, and soils that are calcare- ous above 40 inches but are otherwise similar to the Tine soils. Typically the surface layer of the Tine soil is brown cobbly sandy loam about 14 inches thick. The upper g inches of the underlying material is pale brown very cobbly loamy sand. The lower part is extremely cobbly sand that extends to 60 inches or more. Permeability is rapid. The effective rooting depth is 60 inches or more. The available water capacity is low. Surface runoff is slow, and the erosion hazard is moder- ate. Most of the acreage is rangeland. Part of it is used for recreation and wildlife. A small acreage is irrigated and used for hay. The cold climate and short growing season limit the production of introduced grasses and preclude the use of this soil as cropland. Muttongrass, bluebunch wheatgrass, and big sage- brush dominate the rangeland vegetation. Big sagebrush becomes dominant as range condition deteriorates. Grazing management is needed to maintain range condition. Where range condition is poor, brush control is needed if there is enough grass to respond. In areas where the grass is sparse, seeding is needed. Suitable for seeding are Indian ricegrass, western wheatgrass, streambank wheatgrass, thickspike wheatgrass, pubes- cent wheatgrass, crested wheatgrass, and Russian wil- drye. The seed should be drilled into a firm seedbed. This soil provides winter range for mule deer and elk. Other wildlife include sage grouse, jackrabbit, cottontail, and coyote. Managing livestock grazing and controlling sagebrush are necessary to protect big game winter range. large stones and seepage are the soil properties most limiting to community development. If saturated, banks cut in excavation are likely to cave in. The capability subclass is Vle. 83-Tine cobbly sandy loam, YS to 55 percent slopes. This deep, well drained, moderately steep to steep soil is on terrace breaks at elevations of 7,500 to 8,500 feet. The average annual precipitation is about 11 to 14 inches, the average annual air temperature is