Navigation Chart For the Columbia River, Sheet No.1, Entrance to Upper Astoria

1903

C&GS

1:40k

Mouth of Columbia River.

1815

Lewis, Meriwether

Oblique Map of Willapa Bay, Washington.

1978

Alpha, Tau Rho

Rio Colombia.

1844

Duflot de Mofras, Eugene

1:310k

Approaches to the Columbia River

1884

C&GS

1:20k

Navigation Chart of Columbia River

1884

C&GS

1:200k

Mouth of Columbia River.

1814

Lewis, Meriwether

Astoria Canyon, Oregon-Washington.

1972

Alpha, Tau Rho

Land grant W. Wash. & N. Oregon.

1888

Northern Pacific Railroad Company

1:380k

Washington Territory Lying West of the Rocky Mountains,1858

1858

U.S. General Land Office

1:1m