Columbia River Entrance, Cape Disappointment.

1946

Bascom

Mouth of Columbia River.

1814

Lewis, Meriwether

Mouth of Columbia River.

1815

Lewis, Meriwether

Peacock Spit, Columbia River.

1946

Bascom

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

1903

C&GS

1:40k

Oblique Map of Willapa Bay, Washington.

1978

Alpha, Tau Rho

Approaches to the Columbia River

1884

C&GS

1:20k

Navigation Chart of Columbia River

1884

C&GS

1:200k

Astoria Canyon, Oregon-Washington.

1972

Alpha, Tau Rho

Land grant W. Wash. & N. Oregon.

1888

Northern Pacific Railroad Company

1:380k