Moccasin

1970

1:24k

Ackley Lake

1970

1:24k

Kolin

1970

1:24k

Sipple

1970

1:24k

Lewistown

1978

1:100k

Big Snowy Mountains

1993

1:100k

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

1876

Ludlow, William

1:380k

Big Snowy Mountain

1893

1:250k

Big Snowy Mountain

1893

1:250k

Big Snowy Mountain

1893

1:250k