The historic Blair line formed a boundary between the State of Georgia and the Cherokee Nation and crossed this highway at this point. Surveyed by James Blair in the early 1800’s, it ran from the forks of the Soque and Chattahoochee rivers in a direct northerly line to the Tallulah River. It was the boundary established in 1817 for the purchase by the State of Georgia from the Cherokee Nation, through the Treaty of 1818, of all lands east of the Chattahoochee River.