Council Oak River Valley Region View Website Calculate Trip Get Directions Overview: A massive 400- to 500-year-old white oak tree where a Cherokee Indian chief signed a treaty giving all land south of the Arkansas River to the territory in 1820; park surrounds the tree, which is listed on the National Registry. Address: Council Oak Council Oaks City Park Dardanelle, AR 72834 Phone: 479-229-3328 Website: http://www.arkansasties.com/WhatsNew/2011/05/council-oak-dardanelle-arkansas/ Connect: Save to foursquare Miscellaneous No Smoking Accessible On or Near: Arkansas River (Okla. to Little Rock)