The Columbia River runs through both Oregon and Washington, serving as a major waterway in the Pacific Northwest.

The Columbia River is one of the most significant rivers in the Pacific Northwest, flowing from the Canadian Rockies in British Columbia, Canada, through Washington and Oregon, and eventually emptying into the Pacific Ocean. The river serves as a natural border between Washington and Oregon for much of its length and is a vital resource for agriculture, transportation, and hydropower. The Columbia River Gorge, a spectacular canyon carved by the river, is known for its stunning landscapes, waterfalls, and recreational opportunities. Historically, it has also been important for Native American tribes and European settlers.