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The relatively thin coal seams above the main Cameo Zone have been <br />recognized by the U.S. Geological Survey as the Cameo "D" through "F" <br />seams. These upper seams are lenticular in nature exhibiting a lack of <br />continuity and limited areal extent. Consequently, these seams are not of <br />minable quantity. <br />The Carbonera Coal Zone is identified within the Roadside permit area. <br />According to available drillhole data there are as many as three definable <br />seams with one seam being of significant areal extent and minable thickness. <br />Although the seam is of minable height, there are a substantial number of rock <br />partings and bone coal layers which are indicative of low coal quality. <br />(ii) A structural contour map, isopach map and an overburden map of the Cameo <br />"B" seam are in Exhibits 15, 41, 31, 42, 32 and 45 respectively. Cross <br />sections traversing the Roadside permit area are presented in Exhibits 40, 43 <br />• and 44. Refer to Appendix 6-3 for drill hole logs done in 1974 and 1976. <br />(iii) The coal seam to be mined is overlain by interbedded sandstone, sandy shales, <br />and shales of the undifferentiated Mesa Verde Group which is exposed at the <br />surtace over essentially all of the Roadside permit area. The Carbonera Coal <br />Zone is present over a portion of this area and outcrops at various locations. <br />The Wasatch and Ohio Creek formations are slightly exposed in the southern- <br />most part of the Roadside South permit area. 7'he•Cameo "B" seam <br />overt~urden runs from outcrop to 2,000 feet in depth. <br />Subsurface water may be encountered in small quantities in localized areas <br />depending on fractures in the overlying strata and local precipitation. <br />• 6-3 (New 3/1/96) <br />