Washington State Park

Park Information

Petroglyphs, quaint hiking shelters and incredible Ozark overlooks define the Washington State Park experience. Easy access to the Big River makes the park great for swimming or fishing and the park’s three hiking trails address every type of hike, from easy strolls to power hikes. Buildings constructed by African-American Civilian Conservation Corps stonemasons complement the park and add to its sense of history.

Park Hours

Park Grounds:

  • Sunrise to sunset, year-round.
  • November through March
    The roads to the upper picnic shelter, pool complex, cabins and the river bottoms are closed to vehicles. They are open to foot traffic.

Thunderbird Lodge hours

  • April 1-14
    Closed
  • April 15 - May 15
    10 a.m. - 5 p.m., Friday through Sunday
  • May 16 - Sept. 15
    9 a.m. to 5 p.m., Monday through Thursday
    9 a.m. to 7 p.m., Friday
    8 a.m. to 7 p.m. Saturday
    8 a.m. to 5 p.m. Sunday
  • Sept. 16 - Oct. 31
    10 a.m. to 5 p.m., Wednesday and Thursday
    9 a.m. to 7 p.m., Friday and Saturday
    9 a.m. to 4 p.m., Sunday
  • November through March
    Closed

Interpretive Center hours

Sunrise to sunset, year-round

Park Office hours

  • 8 a.m. to 4:30 p.m., Monday through Friday, year-round.
    Please note there may be times when the office is closed while staff are working in the park.

Address

13041 State Hwy. 104
De Soto, MO 63020-7000

Phone numbers

  • Park Office: (636) 586-5768
  • Lodging/Store/Canoe Rentals: (636) 222-2153