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1971 Map of Thompsons Harbor

Name: 1971 Topographic Map of Thompsons Harbor
Creator: U.S. Geological Survey
Published: 1974
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1974

About this map

Black Lake State Forest dominates this coastal landscape along the northern shores of the Lower Peninsula, where the waters of Lake Huron meet a complex network of inland hydrology. The 1971 survey highlights a rugged topography of points and bays, from Observatory Point to the sheltered inlet of Thompsons Harbor. Further inland, the northern reaches of Grand Lake are dotted with numerous islands such as Indian Island, Bear Island, and Applegate Island.

The map reveals a landscape defined by its drainage systems, including Schalks Creek and Monaghan Creek, which wind through the timbered state forest lands. Local infrastructure is concentrated along State Road and Highland Pines Road, with a visible Roadside Park serving as a landmark for mid-century travelers along the coast. The presence of several Gravel Pits suggests the localized extraction industries that supported the area's road development in the early 1970s.