West Seattle comprises two of Seattle, Washington's thirteen districts, Delridge and Southwest, and encompasses all of Seattle west of the Duwamish River. It was incorporated as an independent town in 1902 and was annexed by Seattle in 1907. Among the area's attractions are its saltwater beach parks along Elliott Bay and Puget Sound, including Alki Beach Park and Lincoln Park. The area is also known for its views of the Olympic Mountains to the west and the Cascade Range to the east.