Fort William

1959

1:250k

Thunder Bay

1959

1:250k

North Coast of Lake Superior From Grand Portage Bay to Hawk Islet Including Isle Royale

1880

US NAVY HYDROGRAPHIC OFFICE

1:213k

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

Lake Superior Including Isle Royale Michigan

1940

U.S. Lake Survey

1:120k

Nautical Chart of Isle Royal, Lake Superior

1871

Corps of Engineers

1:30k

Todd Harbor

1985

1:100k

Todd Harbor

1985

1:100k