This collection of data was produced by the United States National Energy Information Center. Data layers in this collection cover a variety of the... National Energy Information Center.
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2012. National Energy Information Center (U.S.). This point shapefile represents operating surface and underground coal mines in the United States as of 2012 These data originate from the U.S. Ene... National Energy Information Center (U.S.).
Walcott, Charles D. (Charles Doolittle), 1850-1927. Department of the Interior U.S. Geological Survey Charles D. Walcott, Director. Map covers parts of the Yukon Territory and northern British Columb... U.S. Geological Survey,.
United States, Office of Strategic Services., Research and Analysis Branch. from OSS map no. 2200, March 1943. OSS.
Supreme Commander for the Allied Powers, Natural Resources Section. Natural Resources Section GHQ SCAP ; Source: Survey of coal reserves 1929-1931, excluding low-grade lignite, published 23 March 1932 by the Ministr... Natural Resources Section GHQ SCAP.
1909. New-York Coal Company. Scale not given. Map traced. W.C.W. Angler, Mining and Civil Engineer, Wellston, Ohio ; original map by J.W. Jones, Civil and Mining Engineer, New ... New-York Coal Company.