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• REFERENCES <br />Hail, W. J., Jr., 1972, Reconnaissance b~ologlc~ map of the llocchklss <br />area, Delta and Hontrose Counties. Colorado: U.S. Ceol. Survey <br />misc. Ceol. Inv. Hap I-698. <br />Lee, W.T., 1912, Coal Fields of Crand Hesa and the West Elk Mountains, <br />Colorado U.S. Ceol. Sutvcy Bull. 510, 2~] p. <br />TVeto, Ogden, Steven, T.A., Hail, W.J., and Noench, R.H., 1976, <br />Preliminary geologic map of the Montrose 1° x 2' quadrangle, <br />southwestern Colorado: U.S. Ccul. Survey Misc. Field Studies <br />blap MF-161. <br />CJ <br />• F-37 <br />Rev. 1: b-18-81 <br />