Loading map...

1964 Map of Round Island

Name: 1964 Topographic Map of Round Island
Creator: U.S. Geological Survey
Published: 1978
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1978

About this map

Mackinac Island and its storied fortifications anchor this 1964 survey of the Straits of Mackinac. The map details the cluster of 19th-century sites on the island's southern tip, including Fort Mackinac and Fort Holmes, along with geological landmarks like Sugar Loaf Rock and Skull Cave. Most of the island is preserved within Mackinac Island State Park, while a Ferry line connects the settlement to the mainland across the open water.

To the southeast, the map transitions to the tip of Bois Blanc Island, showing the Bois Blanc Landing Field and the expansive Black Lake State Forest. Between these two major landmasses lies the smaller, forest-covered Round Island, part of the Hiawatha National Forest. This survey captures the maritime geography of the South Channel and Zela Shoal, providing a look at the navigation points and light stations essential to Great Lakes shipping during the mid-20th century.