Judith Basin : drawn under the direction of Capt. W. Ludlow Corps of Engineers

1876

Ludlow, William

1:380k

Montana east.

1874

Asher & Adams

1:1m

Montana.

1875

Asher & Adams

1:1m

No. II, Reconnaissance Map. (Old Fort Browning to Sweet Grass Hills).

1878

Twining, W.J.

1:507k

Montana.

1897

Rand McNally and Company

1:2m

Montana.

1880

Mitchell, Samuel Augustus

1:3m

Montana.

1875

Cram Atlas Company

1:1m

Montana.

1924

Rand McNally and Company

Partie des Etats-Unis. Amer. Sep. 39.

1827

Vandermaelen, Philippe, 1795-1869

1:2m

Partie de L'Oregon. Amer. Sep. 39.

1825

Vandermaelen, Philippe, 1795-1869

1:2m