Federal officials say the area, northwest of Dawsonville, was closed for five days as crews battled the blaze.
The U.S. Forest Service said Friday morning the blaze was 100 percent contained and the trail was again open to hikers.
Authorities say the Black Mountain Fire began Saturday, near the Black Mountain and Springer Mountain areas of the Chattahoochee National Forest. The area is near the Dawson, Gilmer, Fannin and Lumpkin county lines.
The cause of the fire remains under investigation.