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1981 Map of Isabella Lake

Name: 1981 Topographic Map of Isabella Lake
Creator: U.S. Geological Survey
Published: 1982
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1982

About this map

Isabella Lake lies at the heart of this aquatic-dominated landscape within the Superior National Forest in Lake County. The region is defined by an intricate network of waterways and portages, including the Isabella River and Island River, which flow through a dense cluster of smaller basins like Pelt Lake and Rice Lake. This 1981 survey documents the established boundaries of the Boundary Waters Canoe Area Wilderness, highlighting a territory managed for conservation and primitive recreation rather than industrial development.

Numerous Portage routes are marked, connecting major bodies such as Perent River and Azure Lake, illustrating the traditional movement patterns required to navigate this portion of the Isabella Lake State Forest. The map captures a transition period in wilderness management, recording the natural hydrography of names like Briddle Lake and South Wilder Lake before more modern digital mapping standards were applied.