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the southern part of the area. These rocks are probably derived <br />from interbedded sediments and tuff. They are dated Boulder Creek <br />age, which is about 1.7 billion years. <br />Soils_.rzRSi_9xecbL.cden. Soils on the proposed mine site <br />ter:d to be unexpectedly uniform even though the topography varies <br />considerably. Although no detailed soil survey has ever been <br />performed by the SCS, three recognizable units are identified - <br />Roclc Outcrop, Stony South-Facing Sandy Loam and Rocky North-Facing <br />Sandy Loam. Only one of these units, the Stony South-Facing Sandy <br />Loam, has direct value in reclamation. It occurs on about 60 <br />percent of the site, but between 50 and 75 percent is too thin, <br />too rocky, or on too steep a slope to allow effective salvage. <br />Salvageable soils are limited to those found on south-facing <br />slopes where vegetation is relatively dense, the soil surface is <br />more gravelly than stony or rocky, and the slope is suitable for <br />operating a dozer safely. Salvageable soils will be found on <br />slopes less steep than 2.5 to 1 or 3 to 1. Salvage depth should <br />be about 6-12 inches, depending upon the actual material. Petaile~ <br />information o[t soils is included in Exhibit 1. There is no <br />overburden on the proposed mine site. <br />blininc Pjq~. In the past, exploratory holes have been <br />excavated in a few places on the property, but as far as the <br />operator can determine, no production mining has ever occurred. A <br />primitive road was constructed on part of the west end of the <br />property. <br />7 <br />