The term "Washington Border" typically refers to the boundary between the state of Washington in the United States and its neighboring regions. To the north, it shares a border with Canada, specifically the province of British Columbia. This border is significant for trade, travel, and cultural exchange between the two countries. In the south, the Washington state border meets Oregon and Idaho. The border with Oregon is defined by the Columbia River for part of its length, while the border with Idaho is primarily a straight line. These borders play a crucial role in the state's geography and governance.