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Castle Ruins

at Ha Ha Tonka State Park

rock castle ruins

Park Hours

Coordinates

37.976084, -92.769853

Park Hours

For temporary closures related to weather, stewardship activities and maintenance, visit our Park and Site Status Map.


On the following days (actual or observed), staff will not be available and park buildings will be closed: Christmas Eve; Christmas Day; New Year’s Eve; New Year’s Day; Jan. 2, 2023; Martin Luther King Jr. Day; Lincoln’s Birthday; and Presidents Day. 

Park Grounds

Summer Hours (On-Season)

  • April through October
    7 a.m. to sunset daily

Winter Hours (Off-Season)

  • November through March
    8 a.m. to sunset daily

The outdoor interpretive area, restrooms and brochures are available during these times. The park gates are closed at sunset. 

Park Office/Visitor Center hours

Summer Hours (On-Season)

  • April through October
    10 a.m. to 5 p.m. daily
    On occasion, the park office may be temporarily closed while park staff assist large groups or conduct outdoor interpretive programs.

Winter Hours (Off-Season)

  • November through March
    The office is not regularly staffed. Park staff are usually available in the park daily. The office telephone is monitored for messages between 8 a.m. and 4 p.m., Monday through Friday.