SR 371 began at an intersection with SR 9 (Atlanta Highway) northeast of Milton and first traveled slightly to the northeast, then bended mostly north through the residential southwestern portion of Forsyth County, before reaching its northern terminus at SR 20 (Canton Highway) near the community of Ducktown.

[1] The area around the southern terminus of the highway features Alpharetta mailing addresses, with the majority of the route located in the 30040 ZIP code.

[citation needed] While the short highway has little statewide significance, it served as an important connector for local traffic in the area, as well as serving as a part of the commuter feeder route to SR 400.

[1][2] The Georgia Department of Transportation annual average daily traffic (AADT) numbers for the year 2011 show an average of 14,490 vehicles using the southern portion of the highway (between SR 9 and Kelly Mill Road) on a daily basis, with 97% of this traffic made up by personal vehicles.

[3] It was 1957 before the route, still signed as SR 141, is marked as having been finished with a hard surface.