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<br />REFERENCES
<br />Application to Conduct Coal Mining in Colorado, Permit Number C-041-081, GEX
<br />Colorado, Inc., February 1981.
<br />Application to Conduct Coal Mining in Colorado, Addendum, Permit Number C-041-
<br />81, GEX Colorado, Inc., October, 1981.
<br />Brogden, R.E., and Giles, T.F., Availability and Chemical Characteristics of Ground
<br />Water in Central LaPlata County, Colorado: U.S. Geological Survey Water -
<br />Resources Investigations 76-69, 1976, map.
<br />Brogden, R.E., and Giles, T.F., Reconnaissance of Ground -Water Resources in a
<br />Part of the Yampa River Basin Between Craig and Steamboat Springs, Moffat
<br />and Routt Counties, Colorado, U.S. Geological Survey, Water Resources
<br />Investigations, number 77-4, 1977.
<br />Brooks, Tom, Geohydrology and Potential Hydrologic Effects of Underground Coal
<br />Mining in the Rapid Creek Basin, Mesa County, Colorado, U.S. Geological
<br />Survey, Water -Resources Investigations Reprot 86-4172.
<br />. Cashion, W.B., Geologic and Structure map of the Grand Junction Quadrangle,
<br />Colorado and Utah: U.S. Geological Survey Miscellaneous Inv. Map 1-736,
<br />1:250,000, 1973.
<br />Colorado Department of Health, Water Quality Control Division, Powderhorn Coal
<br />Company, Permit CO -0027146, 1992.
<br />Colorado Division of Wildlife, Colorado Bird Distribution Latilong Study, 1978.
<br />Colorado Division of Wildlife, Colorado Reptile and Amphibian Distribution Latilong
<br />Study, 1978.
<br />Conner and Wignall, Antiquities Research Division, Historial Museum and Institute,
<br />Grand Junction, 1977.
<br />Enderson, J., Raptor inventory of Grand Junction Resource Area, 1977.
<br />Engineering Department, Mid -Continent Coal and Coke Co., Mining Plan
<br />Cottonwood Property: Carbondale, Mid -Continent Coal and Coke Co., p.11-
<br />36, 1977.
<br />Erdman, C.E., The Bookcliffs Coal Field in Garfield and Mesa Counties, Colorado:
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