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<br /> <br />Page 2 <br />The t•lount Garfield Formation is the lo~.+cst n~o:obnr ui the Mesa Verde <br />Group and consists of buff and gray fine-grained and medium-,rained <br />sandstones and gray shales. 1'he regional dip is approximately Z° [o <br />the northeast into fire basin. _ <br />The most consistent coal within the tense ir. the C:uuco scam. '1'ne beci <br />ranges in thickness from 17 to 22 legit. Lc :section I~, IU, and J the <br />Cameo seam appears to split into an upper auu lower bench. Present <br />throughout most of the bed is lenses of bone coal and carbonaceous <br />shale. <br />The existing mining operation unit is bound by two high angle normal <br />faults. 'These faults appear to diverge to the northeast. The vertical <br />throw on the east fault is approximatlly 7U feet, 'the west La~.cLt lies <br />west of the McGlane portal and has not intersected the hicClane Canyon <br />mine workings. <br />Based upon limited knowledge from test en[rius and drill holes, the <br />root rock consists of gray and black shales of v,:rying hardness and <br />competence. Tlce floor ruck cons its ut ::tralr.s in so~ne places and a <br />medium-grained triable sandstone elsewhere. llo lloor hcavini; has yet <br />been observed within Che PicClanc Canyon mine. <br />Uve rbu rd en thicknesses range from U - 1,uU0 fee[ on the subject lease. <br />Figure 2.1-11 (of the Ninc Plan) is an isopacir map oC overburden to [he <br />Cameo seam. I•losr of the overburden on the lease area ranges [rom l0U <br />fee[ (in [he central portion of lease areal [0 1,000 feet (in [he <br />northeast portion o1 lease area). <br />According to Sheridan tn[erprises, 'nc. no other valuable nii octal <br />resources have been identified in tic area. 'there appears to be no <br />conflict with oil and gas interests. All of SBCClOns 10 and 15 were <br />withdrawn from the simultsneous oil and gas List on March, 1977 by [he <br />Colorado Stale Director of [he 6ure~•r of Land h~anagement. <br />In the llouglas Yass area there have been small coal mining operations <br />going-on. There are., however, no records or intormatiun regarding <br />previous mini.ny~ operations in the area. <br />