Fern Canyon is a canyon in the Prairie Creek Redwoods State Park in Humboldt County, California, western United States. The park is managed in cooperation with other nearby redwoods state parks and Redwood National Park. It is named for the 50-foot vertical ferns that cover the walls cut by Home Creek. Fern Canyon is recognized as a World Heritage site and an International Biosphere Reserve. 
Fern Canyon was donated by the Pacific Lumber Company to the State to add 2,125 acres to Prairie Creek State Park.
- Adiantum jordanii
- Blechnum spicant
- Polypodium californicum
- Polypodium glycyrrhiza
- Polystichum munitum
A hiking trail follows the canyon and creek. The trail loop is 0.5 miles, one end of the trail connecting to the James Irvine trail.
- Turner, Dennis W. & Gloria H. (2010). Place Names of Humboldt County. Orangeville, CA: Dennis W. & Gloria H. Turner. p. 92. ISBN 978-0-9629617-2-4.
- "Filming Locations for The Lost World: Jurassic Park". The Worldwide Guide to Movie Locations. Retrieved 2007-06-30.
- U.S. Geological Survey Geographic Names Information System: Fern Canyon
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