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4 - 60 <br />• The study site is located in the lower montane climax region of Marr (1967); the saltbrush - <br />greasewood and juniper • pinyon woodland potential natural vegetation as mapped by Kuchler <br />(1966); the northern desert shrub and conifer woodland phase of the desert and conifer <br />biomes, respectively, as described by Hylander (1966); and the cold desert communities <br />(pinyon-juniper and shadscale) as described by Shelford (1963). <br />4.5.10 DESCRIPTION OF VEGETATION <br />The permit area is characterized by three vegetation types. They include a Greasewood <br />Shrubland along East Salt Creek drainage, a shadscale Shrubland on south•facing talus slopes <br />of canyon ridges and a juniper Woodland on the dry, shallow rock soils and slopes of the <br />mountainous terrain. Each of these vegetation types are affected by mining activities. See <br />Table 4.5.1. <br />These community types are described below from quantitative data collected during the <br />• <br />1980 growing season. Fgure 4.5-1, vegetation map, illustrates the vegetation types of the <br />permit area and a surrounding region. <br />4.5.10.1 GREASEWOOD SHRUBLAND <br />A Greasewood Shrubland vegetation type occurs on the flat terrain along East Salt Creek at <br />the mouth of McClave Canyon. The major soil type in this vegetation type is the Glendive sandy <br />loam, a deep, well drained, medium textured soil. The Havre loam, a deep, well drained, <br />medium-fine textured soil is also common. This latter soil is very sodic and moderately saline, <br />characteristics often associated with greasewood vegetation types. This Greasewood <br />Shrubland is a climax vegetation type. See Figure 4.5-2. <br />COVER <br />Thirty-five plant species were identified in this vegetation type. The inventory includes 1 <br />tree, 8 shrubs plus subshrubs, 10 graminoids, 14 forts, and 2 succulents. Shrubs and <br />graminoids are dominant in the cover providing 33.2 and 32.1 percent cover, respectively, of <br />the 74.4 percent estimated vegetation cover. Total fort cover is 8.8 percent. Succulent cover <br />is low at 0.3 percent. Litter and soil cover are moderately high with 14.7 and 10.3 percent <br />• cover, respectively. <br />M~ Volume 1 4.29-96 <br />