Siuslaw National Forest is a federally managed forest in western Oregon along the central coast between Coos Bay and Tillamook. Established in 1908, it spans more than 630,000 acres and is notable for combining coastal forest, dunes, rivers, lakes, shoreline, and mountain terrain within one public landscape. Its boundaries include the Sand Lake Recreation Area, the Oregon Dunes National Recreation Area, and Marys Peak, the highest point in the Oregon Coast Range. The forest supports varied plant communities, extensive aquatic habitat, recreation across shore and uplands, and protected old-growth and wilderness areas, including Drift Creek, Cummins Creek, and Rock Creek.