The Columbia River borders most of the length between Washington & Oregon.
The Yukon Territories, and British Columbia border the Pacific Ocean.
Columbia
The Columbia River lies between the States of Washington and Oregon, and forms the border between the two.
Columbia river
Venezuela and Columbia border each other.
Alberta borders British Columbia.Alberta borders British Columbia.
Both the Northwest Territories and British Columbia share borders with the Yukon and Alberta.
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Alberta
Alberta, British Columbia, and Saskatchewan
The province of British Columbia has the Pacific Ocean for its coast.