REMOVE

1. Geology
2. Book Map
3. Wyoming
4. Montana

WHAT

1. Exploration Book (1)
2. U.S. War Dept. (1)

WHERE

1. Missouri River (1)
2. Nebraska (1)
3. South Dakota (1)

WHO

1. Bien, Julius (1)
2. Government Printing Offic … (1)
3. Hayden, F.V. (1)
4. Maynadier, H.E. (1)
5. Raynolds, W.F. (1)

WHEN

1. 1869 (1)