Laurium

1978

1:24k

Laurium

1948

1:24k

Laurium

1946

1:24k

Laurium

1946

1:24k

Keweenaw Waterway Mich Including Torch Lake and Canal Lake Superior

1934

U.S. Lake Survey

1:30k

Chart of Portage Lake and River Lake Superior Including Torch Lake Michigan

1908

U.S. Lake Survey

1:30k

Chart of Portage Lake and River Lake Superior Including Torch Lake Michigan

1905

U.S. Lake Survey

1:30k

Keweenaw Waterway Including Torch Lake

1973

NOS Lake Survey Center

1:30k

Keweenaw Waterway Including Torch Lake

1964

U.S. Lake Survey

1:30k

Keweenaw Waterway Including Torch Lake

1962

U.S. Lake Survey

1:30k