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Start Over You searched for: Format Shapefile Remove constraint Format: Shapefile Publisher National Atlas of the United States Remove constraint Publisher: National Atlas of the United States Subject Coal Remove constraint Subject: Coal Place Massachusetts Remove constraint Place: Massachusetts Place Arizona Remove constraint Place: Arizona Place Alabama Remove constraint Place: Alabama Place Colorado Remove constraint Place: Colorado Data type Polygon Remove constraint Data type: Polygon

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1. Coal Fields of the United States Polygon Stanford University Public content

2001. Eastern Energy Resource Surveys Team (Geological Survey). This polygon shapefile shows the coal fields of Alaska and the conterminous United States. Most of the material for the conterminous United States ... National Atlas of the United States.