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VII. REFERENCES <br />Fischer, Dennis W., 1981, Paleontological Inventory and Assessment <br />• of the Durango and Cortez Known Recoverable Coal Resource <br />Areas: BLM Contract, 63 pages. <br />Zapp, A. D., 1949, Geology and Coal Resources of the Durango Area, <br />LaPlata and Montezuma Counties, Colorado: U. S. Geological <br />Survey Oil and Gas Investigations Preliminary Map 109, 2 <br />Sheets. <br />• <br />• <br />22 <br />