Washington (state) for the southernmost section where the border follows the Snake River. Oregon is to the south, with the Columbia River forming the western part and the 46th parallel forming the eastern part of the Oregon-Washington border. To the west of Washington lies the Pacific Ocean. Its northern border lies mostly along the 49th parallel, and then via marine boundaries through the Strait of Georgia, Haro Strait, and Strait of Juan de Fuca, with the Canadian province of British Columbia to the north. Washington is part of a region known as the Pacific Northwest, a term which always includes Washington and
Washington State Route 290 Washington State Route 290 State Route 290 (SR 290), named Hamilton Street and Trent Avenue, is an long state highway serving Spokane County in the U.S. state of Washington. SR 290 travels parallel to a Union Pacific railroad from (I-90) in Spokane through Millwood and across the Spokane River thrice towards Spokane Valley, where the highway intersects . From Spokane Valley, the roadway continues to the Idaho state border, where it becomes . The current route of SR 290 was formerly county roads between 1901 and 1937 when it became Secondary State Highway 2H (SSH 2H). The highway ran from