Skip to main content
U.S. flag

An official website of the United States government

A photo of The Columbia River

June 2011 (approx.)

Detailed Description

View looking downstream along the Columbia River from Mayer State Park on the Oregon side. Massive ledges of the Grande Ronde Basalt Formation (Lower to Middle Miocene) of the greater Columbia River Basalt Group are visible on the north (Washington) side of the river.

Sources/Usage

A photo of The Columbia River