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Please read BHL's Acknowledgment of Harmful Content
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  1. 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,
    Publication info: Helena, MT, Montana Natural Heritage Program, [2018]
    Holding Institution: Montana State Library