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of its crourse. There are several exposures of besaverde bedrock and a thin <br />• ~ mantle of soil derived from the weathered bedrock and the rubble cover along the <br />main stream and its tributaries. Marry basaltic boulders have moved downslope <br />with the soil being formed and some are in the stream channel. There are no <br />indications of significant alluvial sediments associated with this stream. <br />The SCS mapped an extensive area of i~lson loam along the general course of <br />the stream channel. Most of this soil development is on a gently sloping bench <br />which borders the west side of the main channel. There are no indications of a <br />terrace relationship of this bench to the stream and there were no stratified <br />sediments noted in the stream banks. It appears that the soil has been formed <br />on an erosion resistant ledge of Mesaverde sandstone, with additional soil from <br />slope outwash of finer sediment from the steep rubble topography to the west. <br />Sufficient seepage provides water for livestock in dammed ponds along the <br />channel, but there is not enough water produced for irrigation. <br />The vegetation consists of gamble oak and sagebrush (Artemesia sue) in the <br />• uplands and various annual and perennial grasses and (orbs in the open areas. <br />Dominant grass species include bluegrass, bromegrass, western wheatgrass, <br />slender wheatgrass and redtop, which are typical of the grassy openings <br />throughout the permit area. <br />Subirrigated indicator species such as sedges and rushes occur in and along <br />the channel bottan and near the ponds. Also along the channel bottom there is <br />cottonwood, willow, some aspen in the upper reaches, serviceberry, chokecherry, <br />hawthorn and other low growing shrubs. <br />This area has historically been used for livestock grazing with winter deer <br />and elk use. According to the SCS the land is not suitable for cultivated crop <br />production and no water is available for supplemental irrigation. The rough <br />topography, steepness of slope and surface stoniness prohibit intensive <br />cultivation on any major scale. <br />The Nbrrell Cow Camp area does not meet the criteria of an AVF. There is <br />• ~ no evidence of significant alluvial sediments associated with this stream. The <br />