Arkansas State Parks Trip Ideas Filter Park Crater of Diamonds Devil's Den Region Northwest Southwest Park Activity Mountain Biking Diamond Digging Trail Type Mountain Biking Trail Difficulty Easy Moderate Strenuous Author Meg Matthews Kelly Farrell Leita Spears Matt Manos Mystina Swaim [X] Monika Rued Date Published April 2020 March 2020 January 2019 November 2018 September 2018 March 2018 November 2017 October 2017 September 2017 July 2017 June 2017 [X] May 2017 January 2017 December 2016 [X] November 2016 October 2016 August 2016 Teen Finds 7.44-Carat Diamond at Arkansas’s Crater of Diamonds State Park May 2017 ⁄ Monika Rued An Arkansas teen found a 7.44-carat diamond at Crater of Diamond State Park after only searching for 30 minutes. It is the 7th-largest diamond found at the parks since 1972. Beyond Mountain Biking in NWA Nov 2016 ⁄ Monika Rued Northwest Arkansas has a lot to offer, from our mountain biking trails, excursions, parks, and conventions. Once you're done biking, stop in on one of our craft breweries or local restaurants. Arkansas State Park IMBA World Summit Bookend Rides Nov 2016 ⁄ Monika Rued Arkansas State Parks has been involved in mountain biking since the 1980s and still have a variety of rides, competitions, trails and bike shops.