Arkansas State Parks Trip Ideas Filter Park Jacksonport Lake Charles Lake Frierson Moro Bay White Oak Lake Withrow Springs [X] Pinnacle Mountain [X] Crater of Diamonds [X] Lake Catherine Region [X] Central [X] Southwest Park Activity Hiking Climbing Watchable Wildlife Diamond Digging Trail Type [X] Day Hikes Trail Difficulty Moderate [X] Easy [X] Strenuous Author Arkansas State Parks Staff Meg Matthews Ron Salley Date Published December 2016 August 2016 April 2016 March 2016 1.73-Carat Diamond Found at Crater of Diamonds State Park Dec 2016 ⁄ Meg Matthews Crater of Diamonds State Park is the only public diamond mine in the world. If a visitor finds a diamond its their's to keep. Recently, two guests who go to Crater of Diamonds on a regular basis found the third-largest diamond at the park in 2016. The diamond is a 1.73-carat white gemstone. The new owners of this diamond say they haven't yet decided what they will do with... Is Pinnacle Mountain a Volcano? Aug 2016 ⁄ Ron Salley Pinnacle Mountain stands about 1,000 feet above sea level, is on the extreme eastern edge of the Ouachita Mountain range, and sits where three rivers converge. An Adventure in Spring Apr 2016 The spring birds are back and filling up the air with their songs. The winter bleakness is behind us. The warm air hits my face as I hike on one of our trails here at Lake Catherine State Park. Pinnacle Mountain State Park Rocks! Mar 2016 ⁄ Arkansas State Parks Staff Tucked away in central Arkansas, Pinnacle Mountain is one of the most accessible state parks for hiking, backpacking, climbing, camping, and biking.