Smith River National Recreation Area is a protected landscape in northwestern California within Six Rivers National Forest, created by Congress in 1990 and managed by the U.S. Forest Service. Extending to the northern border of Redwood National and State Parks, it is centered on the Klamath Mountains and the Smith River, one of the longest National Wild and Scenic Rivers in the United States. The area is known for fishing, rafting, canoeing, campgrounds, and year-round hiking, though its very wet climate often affects access and conditions. Its coastal-influenced ecology includes Port Orford cedar, a species threatened here by a soil-borne root disease.