North Georgia's mixed-surface Swinging Bridge routes come 42 and 60 mile versions. Both cross the Tocoa river twice, on an antique non-swinging steel bridge in the quaint town of Aska and again on the cable suspended bridge which really does swing. The 60 mile version adds the infamous climb to Winding Stair Gap. Take a moment to visit the US Fish and Wildlife Service fish hatchery on Rock Creek Rd if you have the time. This is one of the prettiest routes in the state.
The Georgia Gravel Traverse is gravel bikepacking route across some of the highest mountains in North Georgia. Showcasing Georgia's spectacular mountains and world class gravel, the GGT meanders 253 miles and climbs over 29,000 feet from the Georgia-South Carolina border to the western edge of the Cohutta Mountains.
Set a few minutes west of Dahlonega, Georgia on some of the same roads used for the Southern Cross gravel race, the 47 mile Nimblewill Gap gravel route includes an unmaintained US Forest Service road over the gap from which the route takes its name. A mountain bike wouldn't be out of place on this route.
The start of the 68 mile Duncan Ridge Loop route is located two hours north of Atlanta in the heart of Georgia's Blue Ridge Mountains. The area is a mecca for outdoor activity and on summer weekends you may encounter dozens of others on MTB, gravel and road bikes. This route climbs and descends several ridges and passes Camp Merrill, home to the US Army's 5th Ranger Training Battalion.