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<br />The climate of the general area is arid to semiarid and continental. <br />Mean monthly values of temperature and precipitation are available at <br />Rangely, Colorado, located about 10 miles southwest of the lease area. <br />Conditions are fairly similar to these in the lease area. <br />Mean monthly temperature in the Rangely area range from the low teens <br />to the low 70's. Because temperatures in the region tend to be inversely <br />related to elevation (U.S. Bureau of Land Management,1978), mean monthly <br />temperatures are probably somewhat lower in the mine area than in <br />Rangely. <br />Average annualprecipitation, including approximately 40 inches of snow, <br />• is just under nine inches in Rangely. Thirty to forty percent of the <br />annual precipitation falls during the winter as snow with the remainder <br />coming through the summer and Eall rain, generally from thunderstorms <br />(see Section II.E - Climatology). <br />3. RED WASH <br />The Red Wash drainage is the larger of the two tributaries of White <br />River associated with the mine permit area. Only the refuse disposal <br />site located northeast of the portal site, will be associated with the <br />drainage. <br />a. Geology <br />The drainage basin lies within the Red Wash syncline, an asymmetrical <br />structure on the northeast flank of the Rangely anticline. The <br />• axis of the syncline trends northwesterly and lies northeast of <br />4/81 II.D-4 <br />