This 557 acre site is composed of a diverse forest community that ranges in age from young to old growth (>200 yrs old) stands. The site contains portions of Elkhorn Creek and Smith Creek and is dominated by western red cedar, western hemlock, and sitka spruce. In portions of the site, very large (up to 8 feet in diameter) western red cedar and sitka spruce are common. The old growth forests of this site and an adjacent preserve have some of the highest diversity of amphibians of any location in Washington. The preserve also provides important breeding habitat for the federally threatened marbled murrelet. Natural forests, like those at Ellsworth Creek NRCA, are extremely rare in Willapa Hills of southwest Washington.  (Pacific County)