Vicksburg to Baton Rouge
Mile 303.7 - Old River Lock and Dam: Entrance to the Atchafalaya River
303.7 Old River Lock and Dam: Entrance to the Atchafalaya River Go main channel around Shreve’s Bar for access to the Atchafalaya River, your best route to the Gulf of Mexico. Also: direct access upstream to the Red River, Ouachita River, Bayou Bartholomew, and all other tributaries upstream.