Description: Coal mining regions of the United States. Place Names: Pennsylvania, West Virginia, Illinois, Indiana, Iowa, Missouri, ISO Topic Categories: economy, location, inlandWaters, oceans, geoscientificInformation Keywords: Coal Mining Regions of the United States, physical, statistical, physical features, industry, economy, location, inlandWaters, oceans, geoscientificInformation, Unknown, 1904 Source: Alexis Everett Frye, Elements of Geography (Boston, Massachusetts: Ginn and Company, 1904) 76 Map Credit: Courtesy The Private Collection of Roy Winkelman |
|