Interpretive Center

at Washington State Park

The nature center is located in front of the park office near the north entrance of the park. The building was constructed by the Civilian Conservation Corps in the mid-1930s and previously housed interpretive displays, which provided a glimpse into the cultural and natural history of the park. The nature center is currently awaiting installation of new exhibits. As a result, the old exhibits have been removed and the building now serves as a visitor contact station containing informative brochures, temporary exhibits and a guest book. Self-guiding tour brochures are also available.


Sunrise to sunset, year-round


38.083779, -90.674222

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
  • 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

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.