REMOVE

1. U.S. War Dept.
2. Oregon
3. Washington

WHAT

1. Separate Map (3)
2. Atlas Map (1)
3. Exploration (1)
4. Indians (1)

WHERE

1. Blue Mountains (1)
2. Cascade Mountains (1)
3. Idaho (1)

WHO

1. U.S. (3)
2. Warren, G.K. (2)
3. (Evans, Elwood) (1)
4. Bien, Julius. (1)
5. Dixon, Joseph (1)

WHEN

1. 1858 (2)
2. 1846 (1)
3. 1860 (1)