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
Seaboard Air Line Railroad Bay Line. Due to the decline of business with the rise of interstate highways and air travel, the steamship company was liquidated in 1962. Following is a partial list of the many named passenger trains that Seaboard operated during the first half of the 20th century, some of which were continued by successors Seaboard Coast Line (SCL) and Amtrak. Trains originating in New York were handled by the Pennsylvania Railroad from New York to Washington; by the Richmond, Fredericksburg and Potomac Railroad from Washington to Richmond; and by Seaboard from Richmond to points south. Prior to the completion of Seaboard's