Laserfiche WebLink
reworking of a minor amount to alluvium status. There are no floodplains or <br />• a terraces which are distinctive of alluvial valleys and which could provide areas <br />large enough to be significant for crop production by irrigation or <br />subirrigation. <br />The vegetation of these drainages consists of dense shrub growth, primarily <br />Gamble Oak (Quercus gambeli) along the side slopes interspersed with openings <br />dominated by bluegrass (POd sue), western wheatgrass (Agropyron smithii), and <br />bromegrass (Bromus sip). Also present were numerous perennial and annual weeds. <br />There were no species that indicated the presence of subirrigation in these <br />grassy openings, and the areal extent was not sufficient to encourage <br />cultivation. <br />Along the stream channels, narrow leaf crottonwood (PO ulus ~P), willow <br />(Salix sip), serviceberry (Amelanchier sip), chokecherry (Prunus ~), and <br />various other low growing shrubs occur. Aspen (POpulus spp) is also present in <br />the upper reaches of the drainages. These areas have been used far livestxk <br />grazing and serve as wildlife habitat. Due to the steep and rocky terrain they <br />• have no potential for cultivation. <br />East Roatcap, West Roatcap and Terror Creeks and the grassy openings <br />associated with these drainages do not meet the criteria of alluvial valley <br />floors based on the following reasons: <br />1) The sediments are predominantly cull vial in nature. <br />2) There are no floodplains or terraces which are <br />distinctive of all w ial valleys. <br />3) There is no indication of subirrigation in the grassy <br />o~nings. <br />4) The areal extent of the grassy openings associated with <br />these drainages is not sufficient to encourage <br />cultivation. <br />