Topographical map of the Portage Lake Mining District.
Description:
Map shows late nineteenth century Michigan land ownership, township grid, township boundaries, mineral resources and deposit locations, limit of the copper range, roads, railroads, canals, towns, and notable physical features. Includes "Internal references denoting ownership of lands." Scale [ca. 1:63,360].
Date:
1888
Creator:
Emerson, L. G.
Item Type:
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Map
Partner:
University of Texas at Arlington Library