- Lewis and Clark State Park covers 620 acres including the satellite areas of Jackson House with .5 acre and Matilda Jackson with 5.2 acres. In addition to an excellent view of Mt. Saint Helens, local attractions include 25 campsites, 62 picnic sites, two CCC kitchen shelters, two horseshoe pits, two group camping areas with a capacity of 50 tent campers and approximately 100 recreational campers. There is also a 3,500 sq. ft. air conditioned and heated building the public may rent for a variety of uses such as classes, meetings, weddings, etc. In December 1987, six surplus buildings were acquired from the U.S.F.S. with three vaulted toilets, two storage buildings, and one large multipurpose building. There is also a corral/ horseback riding area which has stalls, water, parking, loading ramps, and a 3.5 mile trails. Part of the park's forest is a designated Natural Forest Area.
Recreation - Recreation at the park includes camping, picnicking, hiking, a natural wading pool, a children's play area, juvenile fishing, and horseback riding.
Climate - Influenced by the Pacific Ocean and surrounding mountains, this area is characterized by a generally wet and temperate climate. Winters are cool and cloudy with rain and some snow. Maximum winter temperatures are normally in the mid- to high 40s with minimum temperatures in the mid 30s. Summers are warm and relatively dry with maximum and minimum temperatures in the mid 70s and low 50s, respectively.
Lewis and Clark State Park, in southwest Washington, is located in Lewis County approximately twelve miles south of Chehalis on Jackson
Highway (old U.S. 99).