Arkansas State Parks Trip Ideas Filter Park Petit Jean Toltec Mounds Devil's Den Cossatot River Crowley's Ridge Lake Fort Smith Logoly Mississippi River Mount Magazine Parkin Archeological Village Creek [X] Crater of Diamonds [X] Pinnacle Mountain Region Southwest Central Article: Park Activity Diamond Digging Climbing Hiking Watchable Wildlife Article: Trail Type Day Hikes Article: Trail Difficulty Easy Moderate Strenuous Author Monika Rued Arkansas State Parks Staff Waymon Cox Date Published December 2019 November 2019 October 2019 August 2019 July 2019 June 2019 May 2019 April 2019 March 2019 February 2019 December 2018 October 2017 September 2017 [X] June 2017 May 2017 December 2016 October 2016 September 2016 August 2016 June 2016 [X] March 2016 Crater Diamond Find: 2.78-Carat Way Out Yonder Diamond Jun 01, 2017 ⁄ Monika Rued A couple spotted a large brown gem at Crater Diamonds State Park that turned out to be a 2.78-carat diamond. 2.65-Carat Diamond Found at Crater of Diamonds State Park Jun 01, 2017 ⁄ Monika Rued A 25 year old woman thought she had only picked up a piece of glass at Crater of Diamonds State park, but in reality, she found out she had discovered a 2.65-carat brown diamond. Crater of Diamonds State Park: A wonderful and crazy place Mar 01, 2016 ⁄ Waymon Cox The main thing that makes Crater of Diamonds State Park so unique is that our visitors are allowed to hunt for diamonds, and then are allowed to keep them. Pinnacle Mountain State Park Rocks! Mar 01, 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.