North America. It runs to the Pacific Ocean between Washington State and Oregon.
There is a Columbia River that runs through southwestern Canada and northwestern US, which would put it on the North American continent.
The Columbia River is the 10th longest river in the US, and is the largest hydroelectric producing river on the continent. It's mighty, for sure.
Potomac River
The Columbia River is the major river in Washington.
Columbia river
Columbia is a country in the South American continent.
Columbia River
Columbia is in South America
The Columbia River originates in British Columbia
The Columbia River borders most of the length between Washington & Oregon.
The Columbia River.
The Danube River is on the continent of Europe.
The Columbia river