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By: Bachen, Daniel A. - Blum, Scott. - Burkholder, Braden, - Maxell, Bryce A. (Bryce Alan) - Montana Natural Heritage Program, - Montana. Department of Environmental Quality. Air, Energy and Mining Division. Coal Section,Edition:Publication info: Helena, MT, Montana Natural Heritage Program, [2018]Volume: 2018Series:Holding Institution: Montana State LibrarySubjects:BHL Collections: