Thorny Ridge Campground

at Harry S Truman State Park

For more information about camping at this park, click here.

Park Hours

Coordinates

38.287225, -93.456445

Park Hours

For temporary closures related to weather, stewardship activities and maintenance, as well as temporary trail closures, click here to 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: Thanksgiving Day; Nov. 29, 2024; Christmas Eve; Christmas Day; New Year’s Eve; New Year’s Day; Martin Luther King Jr. Day; Lincoln’s Birthday; and Presidents Day. 

Park Grounds

Sunrise to sunset, daily, year-round

Park Office hours

April through October (On-Season)

8 a.m. to 4:30 p.m., Monday through Friday

Closed Saturday and Sunday

November through March (Off-season)

Staff are usually available in the park daily. The office telephone is monitored for messages between 8 a.m. and 5 p.m., Monday through Friday.

Campground Beach hours

Beach closed for the season

Day-Use Beach hours

Beach closed for the season