Crosby

1984

1:100k

Crosby

1984

1:100k

Crosby

1950

1:63k

Crosby

1950

1:63k

Noonan

1950

1:63k

Noonan

1950

1:63k

Joint Map No. XII. United States Northern Boundary Commission. (Canadian Border).

1878

Campbell, A.

1:127k

Joint Maps of the Northern Boundary of the United States From the Lake of the Woods to the Summit of the Rocky Mountains

1878

NORTH AMERICAN BOUNDARY COMMISSION

1:127k

Williston

1957

1:250k

Williston

1953

1:250k