Peirce, H.W., 1975, Coal - Arizona's most important energy resource?: Fieldnotes [Arizona Bureau of Mines], v. 5, no. 4, p. 1-3. Authors Peirce, H.W. Publication Date 1975 Citation Fieldnotes [Arizona Bureau of Mines], v. 5, no. 4, p. 1-3. State AZ Province CP County NA AP Placenames Black Mesa(CP) Keywords Coal History Production More Keywords Coal, History, Production, AzGeoBib RefNum 7779