This is #2 in a mystery series of 14 geocaches of the GA400 overpasses in Forsyth County: Union Hill Road. The cache is not at the posted coordinates. Your task is to solve the mystery to find the final location.
Union Hill Road is a 3.7 mile road in a “C” shape that has its southern terminus at the intersection of McGinnis Ferry Road and Ronald Reagan Blvd. Its northern terminus is at Shiloh Road. Union Hill Road actually touches three others streets that are a part of this series (McGinnis Ferry Rd, McFarland Rd, and Shiloh Rd).
Congrats to SpacekittyXD for the FTF!
Here is the puzzle: the coordinates are located in GC8RBRZ (GA400 Overpasses of FoCo - Pendley Road). You find it, you'll find this one.