Shawnee Trails Council was formed from the merger of the Four Rivers Council and the Audubon Council. The Four Rivers Council originally served youth within the area bounded by the Tennessee and Mississippi Rivers, the Tennessee state line except for South Fulton, TN and the river counties in Southern Illinois. Audubon originally served youth within a jagged border formed by the Ohio, Rough, Tennessee, and Barren Rivers. In 1951, the Cogioba Council, headquartered in Bowling Green merged with the West Kentucky Area Council to form the Audubon Council serving a good third of Kentucky. In the early 1990s, Audubon merged with the Paducah based Four Rivers Council, adding the additional counties on the other side of the Tennessee River as well as counties in southern Illinois and northwestern Tennessee with the exception of the Fort Campbell military reservation in southern Trigg and Christian counties, which remained a part of the Middle Tennessee Council.