Description: A map showing the coal fields of the United States in 1916. Place Names: ISO Topic Categories: boundaries, location, oceans, inlandWaters Keywords: Coal Fields of the United States, political, physical, geological, major political subdivisions, country borders, industry, boundaries, location, oceans, inlandWaters, Unknown, Source: Albert Perry Bidgham & Charles T. McFarlane, Essentials of Geography (New York, NY: American Book Company, 1916) 82 Map Credit: Courtesy The Private Collection of Roy Winkelman |
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