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1960 Map of The Cascades

Name: 1960 Topographic Map of The Cascades
Creator: U.S. Geological Survey
Published: 1965
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1965

About this map

The Site of Fort Charlotte marks a significant historical anchor at the western terminus of the Grand Portage, where voyageurs and traders once bypassed the falls and rapids of the lower river. This 1960 survey highlights the dense topographical detail of the Grand Portage National Monument and the surrounding borderlands between Ontario and Minnesota. The landscape is defined by the winding course of the Arrow River and the Pigeon River, which serves as the international boundary between the United States and Canada.

Remote and largely undeveloped, the area’s relief is shown through fine contour intervals, depicting the steep drops around The Cascades and the quiet waters of Whitefish River and Pine Lake. For those interested in the fur trade era or early North American border surveys, the map provides a clear record of the portage route and the Indefinite Boundary lines that characterize this transition from the Lake Superior highlands to the interior waterways.