Laurium

1946

1:24k

Laurium

1946

1:24k

Laurium

1948

1:24k

Laurium

1978

1:24k

Keweenaw Waterway Michigan Including Torch Lake

1941

U.S. Lake Survey

1:30k

Keweenaw Waterway Including Torch Lake

1973

NOS Lake Survey Center

1:30k

Keweenaw Waterway Mchigan Including Torch Lake

1940

U.S. Lake Survey

1:30k

Keweenaw Waterway Michigan Including Torch Lake

1948

U.S. Lake Survey

1:30k

Keweenaw Waterway Michigan Including Torch Lake

1954

U.S. Lake Survey

1:30k

Hancock

1985

1:100k