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<br />GRAND COUNTY AREA, COLORADO
<br />Grazing management and deferred grazing improve
<br />depleted rangeland. This site cahnot be seeded because
<br />of steep slopes.
<br />This soil provides winter range for mule deer and elk.
<br />Other wildlife include sage grouse, jackrabbit, cottontail,
<br />and coyote. Managing livestock grazing and controlling
<br />sagebrush are needed to protect the big game winter
<br />range.
<br />Steep slope, shrink -swell potential, and low strength
<br />are the soil properties most limiting to community devel-
<br />opment. Road design should include drainage outlets for
<br />surface runoff. Cut and fill slopes should be kept to a
<br />minimum to avoid hillside slippage.
<br />The capability unit is Vlle.
<br />81 —Tine gravelly sandy loam, 0 to 3 percent
<br />slopes. This deep, well drained, nearly level to gently
<br />sloping soil is on fans and terraces at elevations of
<br />7,500 to 8,500 feet. It formed in alluvial outwash. The
<br />average annual precipitation is about 11 to 14 inches,
<br />the average annual air temperature is about 37 to 42
<br />degrees F, and the frost -free season is about 35 to 75
<br />days.
<br />Small areas of Harsha and Leavitt loam are included
<br />in mapping. Also included are a few small areas of
<br />Cryorthents, Rock outcrop, and soils that are calcareous
<br />above 40 inches but are otherwise similar to the Tine
<br />soil.
<br />Typically the Tine soil has a surface layer of brown
<br />gravelly sandy loam about 14 inches thick. The upper 9
<br />inches of the underlying material is pale brown very
<br />cobbly loamy sand. The lower part is extremely cobbly
<br />sand that extends to 60 inches or more.
<br />Permeability is rapid. The effective rooting depth is 60
<br />inches or more. The available water capacity is low.
<br />Surface runoff is slow, and the erosion hazard is slight.
<br />Most of the acreage is rangeland. Part of it is used for
<br />recreation and wildlife. A small acreage is irrigated and
<br />used for hay. The cold climate and short growing season
<br />limit the production of introduced grasses and preclude
<br />the use of this soil as cropland.
<br />Muttongrass, bluebunch wheatgrass, and big sage-
<br />brush dominate the rangeland vegetation. Big sagebrush
<br />becomes dominant as range condition deteriorates.
<br />Grazing management is needed to maintain range
<br />condition. Where range condition is poor, brush control is
<br />needed if there is enough grass to respond. In areas
<br />where the grass is sparse, seeding is needed. Suitable
<br />for seeding are Indian ricegrass, western wheatgrass,
<br />streambank wheatgrass, thickspike wheatgrass, pubes-
<br />cent wheatgrass, crested wheatgrass, and Russian wil-
<br />drye. The seed should be drilled into a firm seedbed.
<br />This soil provides winter range for mule deer and elk.
<br />Other wildlife include sage grouse, jackrabbit, cottontail,
<br />and coyote. Managing livestock grazing and controlling
<br />sagebrush are necessary to protect the big game winter
<br />range.
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<br />41
<br />Large stones and seepage are the soil properties most
<br />limiting to community development.
<br />The capability subclass is Vls.
<br />82 —Tine cobbly sandy loam, 3 to 15 percent
<br />slopes. This deep, well drained, gently sloping to strong-
<br />ly sloping soil is on fans and terraces at elevations of
<br />7,500 to 8,500 feet. The average annual precipitation is
<br />about 11 to 14 inches, the average annual air tempera-
<br />ture is about 37 to 42 degrees F, and the frost -free
<br />season is about 35 to 75 days.
<br />Small areas of Harsha loam and Leavitt loam are in-
<br />cluded in mapping. Also included are a few small areas
<br />of Cryorthents, Rock outcrop, and soils that are calcare-
<br />ous above 40 inches but are otherwise similar to the
<br />Tine soils.
<br />Typically the surface layer of the Tine soil is brown
<br />cobbly sandy loam about 14 inches thick. The upper 9
<br />inches of the underlying material is pale brown very
<br />cobbly loamy sand. The lower part is extremely cobbly
<br />sand that extends to 60 inches or more.
<br />Permeability is rapid_ The effective rooting depth is 60
<br />inches or more. The available water capacity is low.
<br />Surface runoff is slow, and the erosion hazard is moder-
<br />ate.
<br />Most of the acreage is rangeland. Part of it is used for
<br />recreation and wildlife. A small acreage is irrigated and
<br />used for hay. The cold climate and short growing season
<br />limit the production of introduced grasses and preclude
<br />the use of this soil as cropland.
<br />Muttongrass, bluebunch whealgrass, and big sage-
<br />brush dominate the rangeland vegetation. Big sagebrush
<br />becomes dominant as range condition deteriorates.
<br />Grazing management is needed to maintain range
<br />condition. Where range condition is poor, brush control is
<br />needed if there is enough grass to respond. In areas
<br />where the grass is sparse, seeding is needed. Suitable
<br />for seeding are Indian ricegrass, western wheatgrass,
<br />streambank wheatgrass, lhickspike wheatgrass, pubes-
<br />cent wheatgrass, crested wheatgrass, and Russian wil-
<br />drye. The seed should be drilled into a firm seedbed.
<br />This soil provides winter range for mule deer and elk.
<br />Other wildlife include sage grouse, jackrabbit, cottontail,
<br />and coyote. Managing livestock grazing and controlling
<br />sagebrush are necessary to protect big game winter
<br />range.
<br />Large stones and seepage are the soil properties most
<br />limiting to community development. If saturated, banks
<br />cut in excavation are likely to cave in.
<br />The capability subclass is Vie.
<br />83 --Tine cobbly sandy loam, 15 to 55 percent
<br />slopes. This deep, well drained, moderately steep to
<br />steep soil is on terrace breaks at elevations of 7,500 to
<br />8,500 feet. The average annual precipitation is about 11
<br />to 14 inches, the average annual air temperature is
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