Dubois NW

1964

1:24k

Dubois

1983

1:100k

Dubois

1958

1:250k

Dubois

1958

1:250k

Dubois

1955

1:250k

Dubois

1955

1:250k

Dubois

1955

1:250k

Dubois

1955

1:250k

Map of a Reconnaissance From Carroll, Montana Ter. to the Yellowstone National Park, and Return

1875

Ludlow, William

1:760k

Geological Map of Portions of Wyoming, Idaho and Utah

1878

U.S. Geological and Geographical Survey of the Territories

1:507k