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brome, elk sedge, snowberry, and beardless wheat grass. Smaller amounts of bluegrass, <br />chokecherry, low rabbit brush, slender wheat grass, Columbia needlegrass, and rose are also <br />present. The production of vegetation suitable for livestock grazing is limited by the shoR <br />growing season and limited available water capacity. The average annual production ofair-dry <br />vegetation is about 1,500 pounds per acre. The soil unit is used extensively as winter range for <br />mule deer and elk and is considered part of the brushy loam range site. <br />A related soil unit on the lower slopes of the hills is the Winnemucca-Clayburn loam. The <br />Winnemucca-Claybur loams are typically deep and well drained. Permeabilities are low and <br />available water capacity is moderate. Effective rooting depth is 60 inches or more. Runoff is <br />medium, and the hazard of water erosion is moderate to high. The potential plant community on <br />these soils includes Gambel oak, serviceberry, elk sedge, mountain brome, snowberry, and <br />Letterman needlegrass. Lesser amounts of chokecherry, slender wheat grass, and American <br />milkvetch are also present. <br />The soil unit on the east side of the hogback is the Rhone loam. I[ is a deep well drained soil <br />formed in residuum and colluvium. The native vegetation is mainly brush and grasses. <br />Typically the upper part of the surface layer is dark grayish brown loam. The underlying <br />material is brown very channery loam. Permeability is moderate and available water capacity is <br />high. Runoff is medium and [he hazard of water erosion is very high. This unit is used mainly <br />for grazing and wildlife habitat. The effective rooting depth is 40 to 60 or more inches. The <br />potential plan[ community on these soils includes Gambel oak, serviceberry, elk sedge, mountain <br />brome, snowberry, big sagebrush, and Columbia needlegrass. The production of forage is <br />limited by a short growing season. <br />The parent rock material for soils on the west side hogback (Nagitsy and Torriorthents) is the <br />Dakota sandstone of Cretaceous age which forms a prominent north-south trending hogback east <br />of Flag Creek. The rock slides and outcrops are about 1 mile east and 800 ft above Flag Creek. <br />Parent rock for soils formed on the lower slopes of the west side of the hogback (Winnemucca- <br />