Belcourt

1968

1:24k

Lake Upsilon SE

1968

1:24k

Lake Upsilon

1936

1:63k

Lake Upsilon

1942

1:63k

Lake Upsilon

1936

1:48k

Rock Lake

1985

1:100k

Rock Lake

1985

1:100k

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

1878

Campbell, A.

1:127k

Devils Lake

1956

1:250k

Devils Lake

1953

1:250k