Six Rivers National Forest

This is the website for the Six Rivers National Forest, which is the primary national forest along the lower and mid Klamath River and tributaries, including the Trinity. The Six Rivers National Forest lies east of Redwood State and National Parks in northwestern California. It is a long, narrow piece of land that stretches about 140 miles from the Oregon border south to Mendocino County. It encompasses 957,590 National Forest acres and 133,410 acres of other ownership. Smith River National Recreation Area and Orleans, Lower Trinity, and Mad River Ranger Districts make up the Forest. The Forest lies in Del Norte County (43%), Humboldt County (35%), Trinity County (21%), and Siskiyou County (1%).