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1986 RECLAMATION AREA <br />The 1986 reclamation area encompasses approximately 47 acres of recla'uned pit in the <br />central azea of the Keenesburg Mine permit area. The 1986 reclamation area is composed <br />of three parcels (west, central, and east) separated by north-south haul road corridors. <br />This azea is nearly flat with a gentle slope (<1°) to the north and east. Reclamation and <br />coincident revegetation within this area took place in 1986. Replaced soils were sandy in <br />texture. <br />Andropogon hallii and Calamovi/fa longifo(ia dominated the west parcel in this area. <br />Bromus marginalus was a subdominant. Additional graminoid contributors observed <br />included Agropyron cristatum and Agropyron dasystachyum. Forbs were present in <br />significant numbers, with Helianthus annuus, Ambrosia psilostachya, Argemone <br />polyacantha (prickly poppy), and Nuttallia nuda (shooting star) observed. Widely <br />scattered individuals of Opuntia polyacantha and Yucca glauca were encountered. <br />The central parcel of the 1986 reclamation area was visually dominated by Calamovilja <br />longifolia, Andropogon hallii and Bromus marginalus. Agropyron dasystachyum was <br />common and clumps of Bouteloua gracilis and Schizachyrium scoparium (little bluestem) <br />were noted. Common forbs included Helianthus annuus, Ambrosia psilostachya, <br />Argemone polyacantha, Thelesperma spp. (thelesperma), Eriogonum effussum <br />(buckwheat), and a few individuals of Nuttallia nuda, Heterotheca villosa (daisy), and <br />• Physalis pumila (ground cherry). Several mature patches of Yucca glauca were <br />encountered. <br />The east parcel of the 1986 reclamation area has two distinct vegetation types. The <br />topographically elevated area at the north end of the parcel is dominated by Calamovilfa <br />longifolia, Andropogon hallii and Schizachyrium scoparium. Ambrosia psilostachya and <br />Eriogonum effussum are the dominant forbs. In the lower azea, at the south end of this <br />parcel, Calamovilfa longifolia is dominant and Bromus marginalus is subdominant, with <br />contributions by Andropogon hallii and Agropyron cristatum. Forbs were fewer and <br />more widely scattered in the lower azea, but included Ambrosia psilostachya, Argemone <br />polyacantha, and Physalis pumila. <br />Overall vegetation cover in the 1986 reclamation area was estimated at 50 to 60 percent. <br />Total herbaceous production was estimated at 150 g/m2 (1340 Ib/ac). No evidence of <br />pests or diseases was identified in any of the 1986 reclamation area parcels. <br />1987 RECLAMATION AREA <br />The 1987 reclamation area encompasses approximately 48 acres of reclaimed pit and <br />adjacent areas in the south central area of the Keenesburg Mine permit azea. The largest <br />segment of the 1987 reclamation azea is composed of two parcels (west and east) <br />separated by a north-south haul road corridor. The entire 1987 reclamation azea is nearly <br />Flat with a gentle slope (<I°) to the south and east. Reclamation and subsequent <br />-13- <br />