Siskiwit Bay

1985

1:100k

Isle Royale Michigan

1961

U.S. Lake Survey

1:40k

Isle Royale Michigan

1957

U.S. Lake Survey

1:40k

Isle Royale, Michigan.

1936

Upper Peninsula Development Bureau

Hancock

1966

1:250k

Hancock

1958

1:250k

Hancock

1958

1:250k

Lake Superior Coast Grand Portage Bay Minn to Shesheeb Point Ont Including Isle Royale Michigan

1958

U.S. Lake Survey

1:120k

Lake Superior Including Isle Royale Michigan

1948

U.S. Lake Survey

1:120k

Lake Superior Including Isle Royale Michigan

1946

U.S. Lake Survey

1:120k