Approaches to the Columbia River

1884

C&GS

1:20k

Navigation Chart of Columbia River

1884

C&GS

1:200k

Columbia Highway America's Premier Scenic Asset.

1915

Portland Chamber of Commerce

(Sheet 3) Map Of Washington Territory West of the Cascade Mountains. Compiled from the Government Surveys by Chas. A. White, C.E. 1870. Engraved, Printed, Manufactured And Published By G.W. & C.B. Colton & Co. No. 172 William St. New York.

1870

White, Charles A.

1:253k

Rio Colombia.

1844

Duflot de Mofras, Eugene

1:310k

The Columbia River : Through the Cascade Mountains to the Pacific Ocean

1905

Oregon Railway and Navigation Company

Astoria Canyon, Oregon-Washington.

1972

Alpha, Tau Rho

Land grant W. Wash. & N. Oregon.

1888

Northern Pacific Railroad Company

1:380k

America's Greatest Scenic Asset - The Columbia River Highway - Portland Oregon.

1919

Oregon Commercial Studio

Washington Territory Lying West of the Rocky Mountains,1858

1858

U.S. General Land Office

1:1m