The 159-acre Hendrickson Canyon NRCA contains Wahkiakum County's last high quality, mature and old growth forest composed of 100 to 120 year old western hemlock, western red-cedar, and Sitka spruce, with scattered older trees. There are very few such remnant stands of mature or old growth forests remaining in the Willapa Hills of southwestern Washington. The site also supports a high-quality example of the western hemlock/Oregon oxalis community type and provides habitat for birds associated with old-growth forest conditions. 

 

Features Protected:  North Pacific Hypermaritime Western Hemlock-Western Red Cedar Forest, western hemlock/Oregon oxalis forest community, marbled murrelet, pileated woodpecker. 
Ecoregion: Northwest Coast (Wahkiakum County) 

Public and private universities, other research institutions and individual researchers may contact DNR to propose a research project at the site. If you are interested in pursuing research at Hendrickson Canyon NRCA, please contact David Wilderman, natural areas ecologist, at david.wilderman@dnr.wa.gov. 

Currently, no formal educational programs are available at Hendrickson Canyon NRCA. The site is not ADA accessible and facilities are not available. For more information, contact the DNR Pacific Cascade Region natural areas manager.