Columbia River, largest river flowing into the Pacific Ocean from North America. The Columbia is one of the world’s greatest sources of hydroelectric power and, with its tributaries, represents a third of the potential hydropower of the United States. It is 1,240 miles (2,000 km) long.
Memaloose Island - The History Museum of Hood River County
Columbia River, Location, Length, History, & Facts
History of Columbia River Gorge Locks Bridge Dam Oregon '70s
Columbia River - Wikipedia
Columbia River - Wikipedia
Cascade Range - Wikipedia
The Columbia River estuary. The inset shows the full estuary
The Organic Machine: The Remaking of the Columbia River (Hill and
down the trodden path Historical Marker
File:FMIB 34157 Map Showing the National Limits of Distribution of
Columbia River: Description, Creation, and Discovery
History of Columbia River Frozen Columbia River Newspaper Article
