Stage 3 is a 167.69 km road race with several mountain passes. The course rolls out with a couple of sprints in Carlisle and Chambersburg before ascending the first of two mountain passes. The first climb, Tuscarora Summit, is only the beginning of some very difficult passes to come. The final climb, Sideling Hill, is 1.8 km long with an elevation gain of 762 meters.

Stage 3 is scheduled to start at 10:00 and finish between 14:15-15:00.