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
Pacific jack mackerel "Trachurus", especially "Trachurus murphyi", which was once thought to be a subspecies of "T. symmetricus", and inhabits waters further south. Pacific jack mackerel travel in large schools, ranging up to 600 miles offshore and to depths of 400 m, generally moving through the upper part of the water column. The Pacific jack mackerel is distributed through the eastern Pacific Ocean from Alaska in the north, south to the western North American seaboard to the Baja California peninsula in the Gulf of California. It has been reported as far south as the Galápagos Islands, but at these latitudes it would be