 SR 108 begins at its intersection with SR 20 in Sutallee in west-central Cherokee County, west of Canton and north of Lake Allatoona, and right in between I-75 and I-575.The route heads north, locally known as Fincher Road, in the direction of Lake Arrowhead, before angling slightly to the northeast to pass the lake to its east, and runs into Waleska, just northeast of the Lake Arrowhead.In Waleska, SR 108 crosses SR 140 and passes Reinhardt College, which is located at the intersection of the two routes, before continuing northeast through northern Cherokee County and into south-central Pickens County, paralleling I-575 to this point.