Arkansas State Parks Trip Ideas Filter Park Crater of Diamonds Delta Heritage Trail Pinnacle Mountain Region Central Lower Delta Southwest North Central Northwest Upper Delta Article: Park Activity Climbing Diamond Digging Hiking Backpacking Fishing Geocaching Kayaking / Canoeing Motorcycling Mountain Biking Road Cycling Watchable Wildlife Article: Trail Type Mountain Biking ATV Backpacking Barrier Free (ADA) Horseback Riding Kayaking/Water Trails [X] Day Hikes Article: Trail Difficulty Easy Strenuous Moderate Author Monika Rued Joe Jacobs Arkansas State Parks Staff Matt Manos [X] Meg Matthews [X] Ron Salley Date Published November 2017 August 2017 December 2016 August 2016 Opt Outside for Green Friday Nov 01, 2017 ⁄ Meg Matthews Green Friday is an antidote to Black Friday where programs will be offered at many Arkansas State Parks on the day after Thanksgiving each year. Delta Heritage Trail Development at Arkansas City Aug 01, 2017 ⁄ Meg Matthews Construction of a new trailhead facility at Delta Heritage Trail in Arkansas City will convert trail tracks to pedestrian and bicycle routes, which will stretch from six miles. 1.73-Carat Diamond Found at Crater of Diamonds State Park Dec 01, 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... Is Pinnacle Mountain a Volcano? Aug 01, 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.