St Marys River Head of Hay Lake to Whitefish Bay

1906

1:40k

St Marys River Head of Hay Lake to Whitefish Bay

1902

1:40k

St. Marys River Head of Hay Lake to Whitefish Bay

1911

1:40k

St Marys River Sault Ste Marie to Whitefish Bay

1973

NOS Lake Survey Center

1:40k

Plate XVII. Vessels moving in Canal above Lock

1905

United States. Board of Consulting Engineers for Panama Canal

Plate XV. Diagram showing movement of vessels through Poe Lock and Approaches St. Marys Falls Canal, Michigan

1905

United States. Board of Consulting Engineers for Panama Canal

St. Mary's River From Lake Superior To Lake Huron

1855

Colton, J.H.

1:180k

Chippewa County, Michigan.

1936

Upper Peninsula Development Bureau

St Marys River Twin Islands to Sault Ste Marie

1921

1:40k

St Marys River From Twin Islands to Sault Ste Marie

1898

1:40k