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• Barnes, H., et al, 1954, Geoloev and Resources of the Red Mesa Area La Plata and <br />Montezuma Counties. Colorado: U. S.G.S. Oil and Gas Investigations Map OM-149. <br />Carter, L.M., 1980, Proceedings of the Fourth Symvosium of the Geology of Rockv <br />Mountain Coal - 1980: Colorado Geological Survey Resource, Series 10. <br />Fassett, J.E. and Hinds, J.S., 1971, Geology and Fuel Resources of the Fruitland <br />Formation and Kirtland Shale of the San Juan Basin New Mexico and Colorado: <br />U.S.G.S. Professional Paper 676. <br />Landis, E.R., 1959, Coal Resources of Colorado: U.S.G.S. Bulletin 1072-C. <br />Shormaker, J.W., et al, 1971, Strippable Low-Sulfur Coal Resources of the San Juan <br />Basin in New Mexico and Colorado: New Mexico Bureau of Mines and Mine <br />Resources, Memorandum 25. <br />Wanek, A. A., 1959, Geolog,~ and Fuel Resources of the Mesa Verde Area <br />Montezuma and La Plata Counties. Colorado: U.S.G.S. Bulletin 1072-M. <br />Zapp, A. D., 1949, Geology and Coal Resources of the Durango Area. La Plata and <br />Montezuma Counties. Colorado: U. S. G. S. Oil and Gas Investigations Map OM-109. <br />• <br />2.04.6 Geology Description <br />2.04.6(11 General Requirements <br />The following geologic description of the Cazbon Junction Mine has been summarized <br />from existing public reports and a contract report by a consulting geologist (see <br />references under Section 2.03.3(4)). This existing information has been organized, <br />field checked and combined with additional field data to provide a geologic baseline for <br />the mine. <br />A discussion about the general occurrence of ground and surface water has been set <br />forth in Section 2.04.5. There appear to be no significant groundwater resources which <br />are regional in nature. Surface and groundwater encountered within the permit area is <br />related in quantity and quality to seasonal recharge from snowmelt and high intensity <br />and/or duration precipitation events. The permit area is at or near the recharge area for <br />the upper alluvium and terrace gravels. <br />The geologic setting inherently dictates the types of mining that can be considered as <br />potentially viable. Because the coal lies in relatively thick seams that are "stacked" in a <br />_ steeply dipping configuration, an open pit mining method is the most economically <br />• <br />Technical Revision 09 (v 1.0) 47 Revised 311998 <br />