Isle Royale, Michigan.

1936

Upper Peninsula Development Bureau

Upper Peninsula, scale six miles to an inch, Isle Royale (and Keweenaw Co.)

1873

Walling, H. F.

1:380k

Lake Superior Including Isle Royale Michigan

1946

U.S. Lake Survey

1:120k

Keweenaw County, Michigan.

1936

Upper Peninsula Development Bureau

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

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

1880

US NAVY HYDROGRAPHIC OFFICE

1:213k

Copper Country - Keweenaw Land, Michigan. Gateway to Isle Royale.

1936

Upper Peninsula Development Bureau

Map of that part of the mineral lands adjacent to Lake Superior, ceded to the United States by the treaty of 1842 with the Chippewas

1847

projected and drawn under the direction of George Talcott, by A.B. Gray

1:370k

Copper and Iron District of Lake Superior Michigan

1880

Bolitho, Edwin