Arkansas State Parks Trip Ideas Filter Park [X] Lake Dardanelle [X] Lake Fort Smith Region North Central Park Activity Trail Type Trail Difficulty Author Jason Baumgartner [X] Heather Johnson [X] Megan Ayres Moore Date Published February 2021 November 2020 August 2020 [X] May 2020 April 2020 Photo Essay: Life Below Lake Dardanelle May 2020 ⁄ Megan Ayres Moore What lives in a lake? If you are like most of us, your first thoughts were fish, snakes, and turtles. Believe it or not, that’s only a small part of the life below Lake Dardanelle! Promethea Silkmoth Video May 2020 ⁄ Heather Johnson Lake Fort Smith State Park in western Arkansas offers a variety of habitats for many different wild creatures. The forest here is a perfect home for the extraordinarily large promethea silkmoth, Callosamia promethea. At nearly four inches, the adults’ wings exhibit extraordinary camouflage to avoid predators.