I don't know but that's the same question I have
Washington State has 142 State Parks, They are listed below.
Alta Lake State Park
Anderson Lake State Park
Battle Ground Lake State Park
Bay View State Park
Beacon Rock State Park
Belfair State Park
Birch Bay State Park
Blake Island State Park
Blind Island State Park
Bogachiel State Park
Bottle Beach State Park
Bridgeport State Park
Bridle Trails State Park
Brooks Memorial State Park
Cama Beach State Park
Camano Island State Park
Camp Wooten ELC
Cape Disappointment State Park
Centennial Trail State Park
Clark Island State Park
Columbia Hills
Columbia Plateau Trail
Conconully State Park
Crawford State Park
Curlew Lake State Park
Cutts Island State Park
Damon Point State Park
Daroga State Park
Dash Point State Park
Deception Pass State Park
Dosewallips State Park
Doug's Beach State Park
Eagle Island State Park
Fay Bainbridge State Park
Federation Forest State Park
Fields Spring State Park
Flaming Geyser State Park
Fort Casey State Park
Fort Columbia State Park
Fort Ebey State Park
Fort Flagler State Park
Fort Okanogan State Park
Fort Simcoe State Park
Fort Townsend State Park
Fort Ward State Park
Fort Worden State Park
Ginkgo Petrified Forest State Park
Goldendale Observatory State Park
Grayland Beach State Park
Griffin Bay State Park
Griffiths-Priday State Park
Hope Island State Park (Mason)
Hope Island State Park (Skagit)
Ike Kinswa State Park
Illahee State Park
Iron Horse State Park
James Island State Park
Jarrell Cove State Park
Joemma Beach State Park
Jones Island State Park
Joseph Whidbey State Park
Kanaskat-Palmer State Park
Kinney Point State Park
Kitsap Memorial State Park
Kopachuck State Park
Lake Chelan State Park
Lake Easton State Park
Lake Sammamish State Park
Lake Sylvia State Park
Lake Wenatchee State Park
Larrabee State Park
Leadbetter Point State Park
Lewis & Clark State Park
Lewis & Clark Trail State Park
Lime Kiln Point State Park
Lincoln Rock State Park
Manchester State Park
Maryhill State Park
Matia Island State Park
McMicken Island State Park
Millersylvania State Park
Moran State Park
Mount Pilchuck State Park
Mount Spokane State Park
Mystery Bay State Park
Nine Mile Recreation Area
Nolte State Park
Ocean City State Park
Olallie State Park
Olmstead Place State Park
Osoyoos Lake State Park
Pacific Beach State Park
Pacific Pines State Park
Palouse Falls State Park
Paradise Point State Park
Patos Island State Park
Peace Arch State Park
Pearrygin Lake State Park
Penrose Point State Park
Peshastin Pinnacles State Park
Pleasant Harbor State Park
Posey Island State Park
Potholes State Park
Potlatch State Park
Rainbow Falls State Park
Rasar State Park
Reed Island State Park
Riverside State Park
Rockport State Park
Sacajawea State Park
Saint Edward State Park
Saltwater State Park
Scenic Beach State Park
Schafer State Park
Seaquest State Park
Sequim Bay State Park
Shine Tidelands State Park
Skagit Island State Park
South Whidbey State Park
Spencer Spit State Park
Spring Creek Hatchery
Squak Mountain State Park
Squilchuck State Park
Steamboat Rock State Park
Steptoe Battlefield State Park
Steptoe Butte State Park
Stuart Island State Park
Sucia Island State Park
Sun Lakes State Park
Tolmie State Park
Triton Cove State Park
Turn Island State Park
Twanoh State Park
Twenty-Five Mile Creek State Park
Twin Harbors State Park
Upright Channel State Park
Wallace Falls State Park
Wanapum Recreational Area
Wenatchee Confluence State Park
Wenberg State Park
Westport Light State Park
Yakima Sportsman State Park
