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1985 Map of Siskiwit Bay

Name: 1985 Topographic Map of Siskiwit Bay
Creator: U.S. Geological Survey
Published: 1985
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1985

About this map

Isle Royale National Park dominates this 1985 survey, showcasing the complex archipelago and ridges of Michigan’s most remote island wilderness. The map details the southern shoreline of the island, where Siskiwit Bay is sheltered by a string of rocky landmasses including Malone Island, Wright Island, and Long Island. The interior geography is defined by prominent elevations like Greenstone Ridge and Minong Ridge, which cradle large inland bodies of water such as Siskiwit Lake and Lake Desor.

Maritime history is evident at the entrance to the bay, where the Isle Royale Lighthouse stands on Menagerie Island. Small outposts and landings, such as Fishermans Home and Malone, suggest the seasonal human presence tied to the lake’s resources. The map also traces the varied coastline from the cliffs of Point Houghton to the quiet waters of Little Boat Harbor, providing an essential record of the park’s primitive infrastructure and natural landmarks.