These soils formed in material weathered from feldspathic sandstone. Elevation ranges from near sea level to 1,100 feet. The soils occur in a coastal marine climate with cool, wet winters and cool, dry summers. The annual precipitation is 80 to 120 inches. These are the competing Ilwaco , Knappton , Lebam , Palix , Vesta , and Willapa soils.
Principal uses are timber production, wildlife habitat, and recreation.
The major tree species are western hemlock and Douglas fir, with scattered Sitka spruce, western red cedar, and red alder. Understory species are salal, oxalis, swordfern and brachenfern, salmonberry, blackberry, red elderberry, and vine maple. Within 20 miles of the Pacific Coast is southwestern Washington and possibly northeastern Oregon. The series is of small extent. Pacific County, Washington, 1978.