REMOVE

1. Atlas Map
2. Physical Atlas
3. Oregon

WHAT

1. Geology (5)
2. Physical (5)
3. Landforms (3)

WHERE

1. California (2)
2. Idaho (2)
3. Nevada (2)
4. New Mexico (1)

WHO

1. Chapman, R.B. (3)
2. John Wiley & Sons Inc. (3)
3. McCormack, J.C. (3)
4. O'Brien, Emmett J (3)
5. Scovel, James L. (3)

WHEN

1. 1966 (3)
2. 1908 (2)