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

1878

Campbell, A.

1:127k

No. III, Reconnaissance Map. (Big Muddy River to Fort Hawley).

1878

Twining, W.J.

1:507k

Williston Sectional Aeronautical Chart

1935

1:500k

Montana east.

1874

Asher & Adams

1:1m

Montana.

1875

Asher & Adams

1:1m

Composite: (Lake of the Woods to the Rocky Mountain Divide).

1878

Twining, W.J.

1:507k

Profile. Reconnaissance Series. (Lake of the Woods to Rocky Mountain Divide).

1878

Twining, W.J.

Montana.

1897

Rand McNally and Company

1:2m

Montana.

1880

Mitchell, Samuel Augustus

1:3m

Montana.

1875

Cram Atlas Company

1:1m