Millersylvania State Park in WA -- Campground & RV Camping in Washington
Millersylvania State Park in WA
WA State Parks allows overnight stays only at the designated sites here.
Old-growth forest camping park on the shores of Deep Lake near Olympia. Diverse landscape with forests, fields, and seasonal wildflowers. Deep Lake has 5 MPH speed limit with hand-carry boat launch only; two sandy swimming beaches. Campsites (including accessible and double options), lakeside cottage, group kitchen shelters, showers, dock, fire pits. Miles of forested hiking and biking trails. Ranger station with seasonal concessions.
Grounded in parks.wa.gov · read August 24, 2026The road in has not been measured -- unknown, not bad. Sits on broad, near-level ground.
Crowded here -- the nearest through road is 0.2 miles off, a 142-site campground. The Deep Lake shoreline is 0.2 mi off. Night skies measure Bortle 4 -- a rural sky with a glow on the horizon. The nearest town, Tenino, is 4.6 mi off.
September normals 48–72°F, 2.0″ rain. Monthly averages, PRISM 1991–2020.