Runners follow an out-and-back loop course for the Nock the Rock race, which starts and finishes on South 3rd Street in front of Caribou Memorial Hospital. From there, the route heads west and south, for a long stretch along Larsen Road, followed by stretches along 2nd Bridge Road, just south of the Alexander Reservoir before heading back to the hospital for the race finish line.
(MORE: Nock the Rock Half Marathon event details)