First U.S. bicycle route will link Atlanta to Chattanooga | Route 666

First U.S. bicycle route will link Atlanta to Chattanooga | Route 666:

U.S. Bike Route 21 is Georgia’s first U.S. Bicycle Route designation that connects Atlanta to Chattanooga on the Tennessee border. The bike route is 160.8 miles long. The Georgia Department of Transportation has been coordinating with Tennessee to designate USBR 21, which will eventually connect Atlanta to Cleveland.