Arkansas State Parks Trip Ideas Filter Park Cossatot River Crater of Diamonds Region Northwest [X] Southwest Park Activity Diamond Digging Trail Type Trail Difficulty Author Meg Matthews Jason Parrie Waymon Cox [X] Monika Rued [X] Shelley Flanary Date Published April 2020 March 2020 November 2018 March 2018 November 2017 October 2017 September 2017 June 2017 May 2017 January 2017 December 2016 [X] October 2016 [X] March 2016 Visitor Finds 2.03-Carat Diamond at Crater of Diamonds State Park Oct 2016 ⁄ Monika Rued It took less than an hour for a family to discover a 2.03-carat white diamond on the side of a plowed furrow at Arkansas’s Crater of Diamonds State Park. A Wild and Scenic River Mar 2016 ⁄ Shelley Flanary Do you hear that sound? Do you hear the music? What could it be? You are standing approximately just southwest of Little Rock, in one of the most spectacular river corridors in the central U.S.