Castle Rock is a city in Cowlitz County, Washington. Located between the Willapa Hillsand western base of Mount St Helens. Castle Rock is at the heart of Washington timber country in the Pacific temperate Rain Forest.
Castle Rock is named for a volcanic rock outcropping over the Cowlitz River, "The Rock", rising 190 feet high on the south side of the city. The rock formation, resembling a castle, became a geographic landmark for Cowlitz Indians and Hudson Bay Company traders as early as 1832. Today, it is the location of The Rock Community Park, with hiking trails, picnic tables, and a historical marker.
Castle Rock is centered primarily on the donation land claim of Eliza and William Huntington, who settled at the location in 1852. The city was platted December 12, 1888 and incorporated on June 20, 1890.
Castle Rock, the Gateway to Mount St. Helens, is 117 miles south of Seattle, Washington and 58 miles north of Portland, Oregon