The mainland of Washington State is located in the Pacific Northwest region of the United States. It is bordered by British Columbia to the north, the Pacific Ocean to the west, and Oregon to the south. The state features diverse landscapes, including mountains, forests, and coastal areas, with the Cascade Range running through its center. Major cities on the mainland include Seattle, known for its tech industry and cultural scene, and Spokane, which serves as a hub for the eastern part of the state. The region is rich in natural resources and offers numerous outdoor recreational opportunities, such as hiking, fishing, and skiing.