Georgia's most northerly highway, GA 2 runs a lengthy course east-west from GA 193 in the Flintstone community south of Savannah to the South Carolina State Line. GA 2 is the most mountainous highway in the state, traversing everything from ridges to the highest mountain ranges in the state. In all, the highway passes through nine counties ranging from a winding two-lane highway to a four-lane expressway. Counties passed through on the approximately 172 mile course include Walker, Catoosa, Whitfield, Murray, Gilmer, Fannin, Union, Towns and Rabun. GA 2 is distinct in that it has no banner routes and never has had any. This does not change, however, that GA 2 has still has quite an interesting history.

GA 2 is substantially overlapped with other highways along its route with most of the highway serving as a state overlap with U.S. 76. Highways that share mileage with GA 2 aside from U.S. 76 include U.S. 23, U.S. 27, U.S. 41, U.S. 411, U.S. 441, GA 1, GA 3, GA 5, GA 15, GA 17, GA 52, GA 61, GA 75, GA 151, GA 225 and GA 515. The independent portions of the route include most of Battlefield Parkway, a section from Ringgold to Cisco broken by GA 225 and a very short section in Ellijay connecting GA 52 to GA 515.

On the western end of the highway, Battlefield Parkway is the most developed portion of GA 2. This section extends from the western end of GA 2 at GA 193 to U.S. 41/76 near Ringgold. Battlefield Parkway is a congested four lane roadway (and five lane west of U.S. 27) with a major interchange at U.S. 27 near Chickamauga Battlefield. U.S. 27 overlaps a small part of Battlefield Parkway, thus breaking the independent mileage a short distance. Much of Battlefield Parkway is suburban sprawl development that makes up part of the suburbs of Chattanooga, though the commercial development basically ends west of LaFayette Road (U.S. 27).

Further east, GA 2 enters a very rural stretch from Ringgold to the Cisco community. This section of the highway serves the town of Varnell and the communities of Praters Mill, Beaverdale, Gregory and Cisco and has very little traffic. While broken by GA 225, this is a relatively lengthy independent stretch at 23 miles. However, this section hardly functions as a major route.

While these portions are indepent, GA 2 by and large exists as a supplement with other highways and would not be nearly as long as it is if state overlaps with U.S. routes were not a basic requirement in the Peach State. The U.S. 27 overlap in Fort Oglethorpe was the most recent when the highway was relocated to bypass Chickamauga Battlefield. The road through that stretch was originally five lanes undivided, but the reconstruction resulted in a short freeway stretch up to the trumpet interchange where U.S. 27 exits south to LaFayette and beyond. Further east in Ringgold, GA 2 joins a tremendous route cluster that tops out at five routes in Ringgold: U.S. 41, U.S. 76, GA 3 and GA 151 on top of GA 2. The main route through there is U.S. 41/76, but GA 151 joins briefly from near I-75 into downtown.

From Cisco on, GA 2 joins U.S. 411/GA 61 from Cisco to Chatsworth where it saddles onto GA 52 to cross the treacherous highway over Fort Mountain, the finale of the Cohutta Mountains, which is the first major mountain range on the highway. This overlap continues past Ellijay where GA 2 cuts independently over the Cartecay River in a very short 0.1 mile transition to GA 5/515. It is from there east that U.S. 76 rejoins the highway for the remainder of its length.

From Ellijay to Blue Ridge, GA 2 is part of a quadruplex with GA 5/515 and U.S. 76. The road from there is all four-lane expressway with mostly at-grade intersections and no full interchanges. GA 5 parts the route in Blue Ridge, but the two other highways continue to share mileage through Blairsville. It is along that stretch that the road becomes tremendously scenic as it cuts through several large valleys that split the higher mountain ranges of the region. Upon entering Union County, the highway has large sweeping vistas where it crosses Hemptown Gap and Queens Gap with views of Lake Nottely just beyond that. The highway changes from asphalt to concrete prior to this stretch in Fannin County and remains a four-lane divided expressway until Blairsville where the highway merges to two lanes.

Four lane sections of GA 2 are more sporatic east of Blairsville, and none with medians. The only sections over two lanes or two lanes with passing zones is a stretch from Young Harris to Hiawassee and a small section in Clayton where it joins U.S. 23/441. At the point where GA 2 nearly touches the North Carolina State Line, GA 515 splits off along former GA 69, but GA 2 then also picks up GA 17 through Hiawassee. East of Hiawassee, GA 2 is up to four overlapped routes again with GA 17 and 75 both following the highway. They depart the highway three miles east of the town, leaving U.S. 76 and GA 2 alone most of the way to South Carolina.

Past GA 17/75, U.S. 76 and GA 2 enter their most mountainous section crossing Dicks Gap. It is there that the Applachian Trail crosses the highway, and GA 2 climbs over 3,000 ft. in elevation. This section of the highway is largely in National Forest and features many unspoiled vistas. There are many dangerous curves along this stretch as well, though most have been realigned significantly over the past two decades. GA 2 meets Lake Burton as it nears Clayton and by then has made the full shift to Appalachian highland scenery.

In Clayton, U.S. 76/GA 2 joins U.S. 23/441 breifly, along with GA 15, taking the route overlaps up to five. This overlap is a mere 0.3 mile, however, and U.S. 76 and GA 2 turn back east on its final stretch into South Carolina. The terminus of GA 2 at the South Carolina line is a grand one with the highway descending into the gorge where the Chattooga River violently roars its way south to form the Savannah River. Popular with rafters in times of higher water, this beautiful river makes a great place to stop and see the last of the mountain scenery before continuing into the Palmetto State. The road in South Carolina changes to typical Piedmont scenery overall, marking the end of the mountains. While GA 2 also ends it journey here, U.S. 76 continues east to Columbia, SC and eventually its final destination in Wilmington, NC.