Trumbull, J.V.A., 1960, Coal fields of the United States: Sheet 1: U.S. Geological Survey, 1 sheet, scale 1:5,000,000. Authors Trumbull, J.V.A. Publication Date 1960 Citation U.S. Geological Survey, 1 sheet, scale 1:5,000,000. State AZ CA NM UT NV CO Province AL County AL Keywords Coal More Keywords Coal, AzGeoBib RefNum 10245