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Contributing Institution
Maine Geological Survey
Document Type
Image
Identifier
2727
Description
Black Hawk (Kerr American) mill construction next to the second pd., Blue Hill.
Location
Blue Hill
Supplemental Rights
Credit must be given to the photographer and the Maine Geological Survey when this photo is displayed, reproduced, distributed and/or used in derivative works.
Keywords
economic geology; Callahan Mine; black hawk mill; blue hill