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2005 Colorado coal fact sheet
Two thousand five Colorado coal fact sheet Colorado coal fact sheet
Colorado. Division of Minerals and Geology.
2006
Colorado Geological Survey Mineral Resources Section
Denver, Colo.
Caption title.
Coal mines and mining
Colorado
Statistics
1 PDF ([1] p.) : ill., maps ; 9442 KB)
eng
NR12.2/C63/2006/INTERNET
http://hdl.handle.net/10176/co:3389
226078166
2010-06-17T19:02:28.430Z