The Columbia River lies between the States of Washington and Oregon, and forms the border between the two.
The Columbia River borders most of the length between Washington & Oregon.
The Columbia River.
Columbia river
The Columbia River.
The Columbia River forms most of the border between Oregon and Washington before flowing into the Pacific Ocean.The river that forms part of the border between two northwestern states and flows into the pacific ocean is the Columbia river.
Potomac River
The Columbia River separates Washington State and Oregon.
Its the Columbia River.
Columbia River
columbia river
The Columbia River
The Columbia River forms a major part of the border between the states of Oregon and Washington.