Millersylvania State Park

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Millersylvania State Park offers fun for everyone. Spend a summer day splashing in Deep Lake. Gather with friends in an historic kitchen shelter. 

Conveniently located between Olympia and Centralia, this large, well-visited park beckons to adults and children alike.

Many of the park structures, including the kitchen shelters, were built by the Civilian Conservation Corps (CCC) in the 1930s, making the park a great place to see and admire the hallmark artisanship of that era.

With two swimming beaches, miles of forested hiking and biking trails, watercraft launches, non-motorized watercraft rentals (kayaks, paddleboards, pedal boats) and abundant fishing, Millersylvania will keep you busy for a satisfying weekend or an extended outdoor vacation.

Park features

Millersylvania State Park is an 903-acre camping park with 3,300 feet of freshwater shoreline on Deep Lake. The state capital is a few miles north of the park.

Discover Pass: A Discover Pass is required for vehicle access to state parks for day use. For more information about the Discover Pass and exemptions, please visit the Discover Pass web page.

Automated pay station: This park is equipped with an automated pay station for visitors to purchase a one-day or annual Discover Pass.

  1. Activities
  2. Boating
  3. Camping
  4. History
  5. Maps

ada amenities/facilities

  • Campground
  •  Restroom
  • Showers

Use our interactive ADA recreation map to search for other state parks with ADA amenities and facilities. 

Picnic & day-use facilities
The park provides four kitchen shelters with electricity, plus 125 unsheltered and 30 sheltered picnic tables.

Kitchen shelter 1 - 3 each accommodates up to 50 people. Each shelter has a wood stove, grill, sink and 15 amp electrical outlets. Kitchen 1 also has a fireplace. Kitchen shelter 4 is located in the group camp area and is reservable with the group camp.



  • 7.6 miles of bike trails
  • 8.1 miles of hiking trails

Water activities & features

  • 100 feet of dock
  • Boating
  • Fishing (freshwater)
  • Kayak, paddleboard and pedal boat rentals
  • Swimming
  • Watercraft launch

Other activities & features

  • Amphitheater
  • Bird watching
  • Fire circles (3)
  • Horseshoe pits (3)
  • Mountain biking
  • Wildlife viewing

Interpretive opportunities

An interpretive display at the flagpole tells the story of the park's construction by the Civilian Conservation Corps in 1935. A stone memorial in honor of the Miller family is located near the first bathhouse.

Additional information

  • For use of the horseshoe pits, please bring your own horseshoes.
  • There is a fishing dock at the boat launch area. Fishing is seasonal.
  • Lakeside Grill & Boats is open seasonally and features hamburgers, hotdogs, pizza, beverages, candy and ice cream. They have kayaks, paddleboards and pedal boats for rent. Reservations can be made by calling (360) 338-8303.
  • A recreational license is required for fishing and shellfish harvesting at Washington state parks. For regulations, fishing season information or to purchase a recreational license, visit the Washington Department of Fish and Wildlife.
  • Printable park brochure (PDF).