The Headwaters Forest Reserve is a group of old growth coast redwood (Sequoia sempervirens) groves, comprising about , managed by the Bureau of Land Management as part of the National Landscape Conservation System. Located in the Northern California coastal forests ecoregion near Humboldt Bay of the U.S. state of California, most of it was owned by the now defunct Pacific Lumber Company, which was owned by Charles Hurwitz and Maxxam Inc, as the result of a hostile takeover in 1985. Headwaters Forest was discovered and named in March 1987 by Humboldt County activist and journalist Greg King. Since that time the Headwaters Forest has been the site of many tree sits and anti-logging demonstrations, which ensued after Maxxam changed generations old policies of sustained-yield logging at PALCO with clearcutting to finance debt they incurred in the junk bonds used to purchase the once storied company.