NOTICE - The Red Fern Festival - Has Been Postponed Until April 2022 - The OKLAHOMA MOON Trio will be Featured on the Main Stage of the Red Fern Festival Sat. Evening September 11th. 2021 (7-8:15)pm. The Red Fern Festival is a celebration of life in a special place that has a unique spirit like none other. Downtown Tahlequah, Ok. comes to life with all kinds of Music, Vendors, Competition, and fun!