Pigeon Point

1985

1:100k

Pigeon Point

1985

1:100k

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

1880

US NAVY HYDROGRAPHIC OFFICE

1:213k

North West Coast Oflake Superior From Grand Portage Bay to Great Shaganash Islands Including Isle Royal Michigan

1905

U.S. Lake Survey

1:120k

Nautical Chart of Isle Royal, Lake Superior

1871

Corps of Engineers

1:30k

Lake Superior Including Isle Royale Michigan

1946

U.S. Lake Survey

1:120k

Isle Royale, Michigan.

1936

Upper Peninsula Development Bureau

Little Todd Harbor

1985

1:24k

Fort William

1959

1:250k

Thunder Bay

1959

1:250k