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Species Identification and Vetiticatiou <br />Species identification was accomplished in the field through the use of plant <br />identification keys (Weber, 1987; Whitson, 1987). In cases where plant identification <br />was inconclusive in the field, voucher specimens were pressed for lab identification. <br />Final species identification was undertaken by Dr. William Weber, Curator Emeritus of <br />the University of Colorado, Boulder Herbarium. <br />III. RESULTS <br />Lone Pine Gulch Surface Facilities Area <br />Three distinct areas were sampled at the Lone Pine Gulch Surface Facilities Area. <br />Results of vegetation cover sampling are reported for each area separately. The plant <br />species encountered and their locations are presented in Table 1. Specific sampling <br />information for the Lone Pine Gulch Surface Facilities Area is contained in Table 2. <br />Underglnund Development Waste Pi/e <br />• The Underground Development Waste Pile (UDWP) represents approximately one acre <br />of reclaimed and revegetated underground development waste rock excavated during <br />the construction of the Lone Pine Gulch ventilation fan portals. The UDWP was <br />topsoiled and revegetated in 1995. The UDWP is sited approximately 1,000 feet <br />southwest of the fan and has been fenced to prevent unauthorized grazing by <br />domesticated livestock. The UDWP is a gently sloped mound which exhibits sheet <br />flow drainage to the northwest. <br />Two lifeforms were encountered during the sampling of the UDWP Area; graminoids <br />and forbs. Nine species were identified during sampling at this parcel. Total <br />vegetation cover of the UDWP was 43.50 percent. Based on cover sampling, <br />graminoids represented 36.50 percent mean cover and forbs accounted for 7.00 percent <br />mean cover. <br />The dominant vascular plant species of the UDWP (based on cover) was Bromus <br />tectorum (cheatgtass). Bromus tectorum accounted for 19.50 percent of the mean <br />cover. Six additional species contributed significant cover at the UDWP; ,~ropyron <br />trachycau/um (slender wheatgtass) provided 7.50 mean cover, Bromus inermis (smooth <br />brome) accounted for 5.50 percent cover, Achilles /anuiosa (western yarrow) provided <br />3.50 percent cover, Agropyron smithii (western wheatgrass) represented 2.50 percent <br />cover, Polygonum douglasii (knotweed) provided 2.50 percent cover, and Poa <br />• pratensis (Kentucky bluegrass) contributed 1.50 percent total cover. <br />_~ <br />