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1955 Map of Diorite

Name: 1955 Topographic Map of Diorite
Creator: U.S. Geological Survey
Published: 1992
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1992

About this map

Mining operations and iron-ore transportation dominate this mid-century landscape in the Upper Peninsula. The small settlement of Diorite serves as a focal point along the Chicago and North Western rail line, which provided the essential link between the inland mines and the Great Lakes ports. The map reveals a high concentration of mineral extraction sites concentrated in the southern half, ranging from the Michigan Gold Mine and American Mine to the Barnes and Hecker Mine Abandoned.

Surface water is plentiful throughout the region, characterized by numerous glacial lakes and drainage systems such as Brocky Lake, Gingrass Lake, and Boston Lake. To the north, the Dead River is controlled by the Dead River Storage Basin Spillway 1345, an important piece of local infrastructure. The terrain is marked by township boundaries for Humboldt, Ely, and Ishpeming, reflecting the administrative and industrial divisions of Marquette County's mining district.