The Arkansas river corridor is a major BWT migration route.
Keystone is ~12' shallower than when initially impounded, per the siltation study done in 2003.
Several areas of quicksand and the Cimmaron arm is highly saline so if you run a OB engine, be prepared to flush it out, right away.
Cottonwood Creek WDU can hold birds but can be crowded as well.
Get a plat map of Tulsa & Muskogee counties and try to secure permission from some of the riverbed landowners from Bixby down to three rivers at Muskogee.
Be there on the full moon and you'll likley see a Grand Passage type event.
Been there, done that.
Sent from my Sumerian tablets