Title: Mass- Michigan Area Map
Subject Headings: Natural Resources - Mines and Mineral Resources - Copper Mines and Mining, Industries,
Description: Sketch Map of Mass- Michigan Area. Calumet and Hecla Copper Co. -Geological Department. Land Net is from USGS Maps. Surface features are sketched from CRCo Aerial Photos.
Source of Description: Front of Map
Institution: Michigan Technological University Archives and Copper Country Historical Collections
Date of Photo: 1939
Medium: still image
Size: 76 cm x 28 cm
Image No: Map-29-C13C-01
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