Structure sections through the high plateaus.

1879

Geographical and Geological Survey of the Rocky Mountain Region (U.S.)

1:127k

Eastern part of Oregon

1899

Cram, George Franklin, 1841-1928

1:755k

Eastern part of Washington

1899

Cram, George Franklin, 1841-1928

1:765k

Oregon.

1948

Hammond, C.S.

1:1m

History of the Pacific States of North America

1882

Bancroft, Hubert Howe.

Map Of The Road From Missouri To Oregon ... Section VII.

1846

Preuss, Charles

1:634k

Spokane Country.

1909

Spokane Chamber of Commerce

1:2m

Composite Map: Western part of Oregon. -- Eastern part of Oregon

1899

Cram, George Franklin, 1841-1928

1:755k

Map Showing the Routes travelled by the Command Of Majr. E. Steen

1860

Dixon, Joseph

1:750k

Oregon.

1874

Asher & Adams

1:1m