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Reclaimed Unit 1984 Wedge 1984 Wolf Creek 1987 Wedge 1987 Wolf Creek Wedge Pasture AUM's /acre 1.5 1.1 1.4 1.2 1.8 Reference Areas AUM's /acre Mountain Brush 0.4 Sagebrush 0.8 The above calculations were based on a proper use factor of 50 percent and one animal unit requiring 810 pounds of forage per month. The SCS has estimated annual production values for the mountain loam range site (corresponding to the Sagebrush type) and the brushy loam type (corresponding to the Mountain Brush type). These estimates are contained in the range site descriptions for these units. For the mountain loam range • site, production of sites in excellent condition during an average precipitation year is 1,125 pounds/ acre or 0.7 AUM's /acre (with 50 percent proper use). The brushy loam range site under similar conditions has a calculated proper stocking rate of 0.8 AUM's /acre. It can be seen that production in the reclaimed areas has resulted in greater allowable stocking rates than either of the reference areas. The reclaimed area allowable stocking rates also exceed those based on the SCS-estimated potential production of native vegetation in excellent condition, as presented in the mountain loam and brushy loam range site descriptions. Alfalfa is a species of particular interest in the Seneca II Mine reclamation. The contribution of alfalfa to total production was high in the reclaimed areas seeded in the early end mid 1980's (1984 Wedge, 1984 Wolf Creek, and Wedge Pasture). Beginning in tall 1986, the alfalfa component of the seed mix was reduced to 1/4 Ib per acre, and the results are clear in these 1991 data, where alfalfa is less than 10 percent of total production in the 1987 Wedge and 1987 Wolt Creek areas. The Wedge Pasture, was sampled in 1988 and 1989 (see 1988 and 1989 Seneca II Revegetation Monitoring Reports) and had 51 percent and 50 percent, respectively, of the annual production 15