
Isle Royale Wilderness dominates this remote archipelago landscape, where dramatic volcanic ridges define the island's interior. Parallel geological formations, including Minong Ridge and Greenstone Ridge, create a corrugated topography that directs the flow of the Little Siskiwit River and shelters inland waters like Lake Desor. Along the southern coast, the map documents the narrow peninsula ending at Point Houghton, separating the open expanse of Lake Superior from the protected waters of Siskiwit Bay. This survey captures the isolated character of the island’s southern reaches, from the maritime hazards of Butterfield Shoal to the seasonal shelters at Fishermans Home Cove. The network of footpaths, such as the Ishpeming Trl and Minong Ridge Trl, highlights the transition from early resource extraction to a landscape managed for conservation and wilderness recreation.
36 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1958 · Hancock
USGS Topo · 1:250,000
1959 · Fort William
USGS Topo · 1:250,000
1960 · Hancock
USGS Topo · 1:250,000
1961 · Hancock
USGS Topo · 1:250,000
1966 · Hancock
USGS Topo · 1:250,000
1968 · Fort William
USGS Topo · 1:250,000
1985 · Todd Harbor
USGS Topo · 1:100,000
1985 · Pigeon Point
USGS Topo · 1:100,000
1985 · Siskiwit Bay
USGS Topo · 1:100,000
1985 · Grand Portage
USGS Topo · 1:100,000