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-6- <br />Coal waste will be transported from the portal site to the waste <br />• disposal area by means of 35-ton 769-0 Caterpillar trucks. The <br />vehicles have a gross weight of approximately 138,000 pounds. <br />If loadings or conditions are significantly different from those <br />described above, we should be notified to revaluate the remmm~nda- <br />tions contained in this report. <br />GEOLAGIC SEPPING <br />The proposed Deserado Mine is located in the northwestern part <br />of the Piceance structural basin about 12 miles northeast of Rangely, <br />Colorado. The surface facility site is ~ the northeastern limb of <br />the northwest trending Rangely anticline, whid~ is a broad, open fold <br />in the northern part of the structural basin. The bedrock formations <br />underlying the site dip gently toward the northeast. The site is <br />• underlain by interbedded sandstone, shale, and coal of the Upper <br />Cretaceous age Mesaverde Group. The Mesaverde Group is underlain by <br />Mesozoic to Precambrian age sedimentary rocks which extend to depths <br />of several tens of thousands of feet. Major faults have not been <br />mapped in the vicinity of the site, Fbwley and others, (1979). The <br />closest faults whidi haves been designated possible capable faults are <br />located in the Rangely Oil Field about 6 miles southwest of the site <br />and along the north and south margins of the Uinta Arch about 20 to <br />50 miles north of the site, Kirkham and Rogers (1978). <br />SITE GEOIlJGY <br />The general geologic and topographic oonditions in the vicinity <br />• of the mine surface facilities is shoes on Fig. 3. The proposed <br />