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• 2.04.5 General Description of Hydrology and Geology <br />This application provides a description of geology, hydrology and ground <br />and surface quality and quantity on all lands within the permit area, <br />the adjacent area and the general area, as defined in Section 1.04 <br />(DEFINITIONS) of the Colorado Regulatory Program. <br />Because of the past and present mining activities along Hay Gulch, a <br />good general knowledge of the geology of the area has been developed. <br />Details on the geology of the permit and adjacent areas are set forth in <br />Section 2.04.6. The regional geology is shown graphically on the <br />Regional Geology Map (Map 5). <br />The "general area" with respect to hydrology is defined by Section 1.04 <br />as that topographic basin that surrounds the area to be mined during the <br />life of the operation. The-Sunbelt operation is a small portion of the <br />mining that is being conducted in the general area on either side of Hay <br />• Gulch. Information on the hydrology of the general, adjacent, and <br />permit areas is set forth in Section 2.04.7. <br />2.04.6 Geologv Description <br />The coal mined from the Peacock Coal Mine is located in the northwestern <br />flank of the San Juan Basin southwest of Hesperus, in La Plata, <br />Colorado. Several streams, such as Hay Gulch, have cut a deep canyon <br />across the field. <br />As an "old coal field", the geology around Hesperus, Colorado has been <br />thoroughly studied and many reports on the area have been published. <br />Coal mining has been conducted in the area since around the turn of the <br />century. <br /> <br />2.04-8 <br />