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By: Bachen, Daniel A. - McEwan, Alexis, - Burkholder, Braden, - Blum, Scott. - Maxell, Bryce A. (Bryce Alan) - Montana. Department of Environmental Quality. Air, Energy, and Mining Division. Coal Section, - Montana Natural Heritage Program.Edition:Publication info: Helena, MT, Montana Natural Heritage Program, 2019Volume: 2019Series:Holding Institution: Montana State LibrarySubjects:BHL Collections: