Del Norte Coast Redwoods State Park, Nature reserve in Del Norte County, United States

Del Norte Coast Redwoods State Park is a nature reserve along California's Pacific coast, dominated by dense forests of ancient coast redwoods mixed with coastal terrain. The landscape includes both towering groves and rugged oceanfront sections that shape the character of this region.

Del Norte Coast Redwoods State Park was established in 1925. In 2002 the Mill Creek Addition enlarged it by 39 square miles (100 km2), bringing the park to 48.8 square miles (126.5 km2). It became part of the California Coast Ranges International Biosphere Reserve in 1983. In 2008 and again in 2011 it appeared on state lists of parks proposed for closure; the 2008 decision was rescinded after public outcry, and in October 2011 the National Park Service agreed to take over its management provisionally for one year.

The park lies within the ancestral territory of the Yurok, Tolowa and other Athabaskan-speaking peoples, who harvested redwood for canoes, houses and baskets. The Mill Creek Addition of 2002 returned part of this land to tribal co-management, and the Yurok Tribe now works with park authorities on forest and creek restoration.

The park holds 8 miles (13 km) of wild Pacific coastline, and the Mill Creek Addition of 2002 brought the total to 48.8 sq mi (126.5 km2). Fog and cool coastal air persist much of the year, so carry layers. Expect steep, forested hillsides dropping to grey sand beaches, as at the driftwood-strewn shore beneath the concrete bridge.

The coast redwoods here grow to extraordinary heights, a direct result of coastal fog that provides constant moisture to nourish these giants. These trees rank among the tallest living things on Earth and reflect how climate shapes everything in this place.