Ambrose

1948

1:24k

Ambrose

1948

1:24k

Ambrose

1948

1:24k

Crosby

1950

1:63k

Crosby

1950

1:63k

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

1878

Campbell, A.

1:127k

Crosby

1984

1:100k

Crosby

1984

1:100k

Williston

1957

1:250k

Williston

1953

1:250k