Arkansas State Parks Trip Ideas Filter Park Crater of Diamonds Historic Washington State Park Region Park Activity Trail Type Trail Difficulty Author Date Published March 2023 February 2023 July 2022 June 2022 June 2021 April 2021 October 2020 August 2020 June 2020 May 2020 April 2020 February 2020 January 2019 January 2017 August 2016 March 2016