Runners follow an out-and-back course for the Parkinson’s Half Marathon, which starts near Fireman’s Park in Cottage Grove and finishes at the trailhead for the Glacial Drumlin State Trail, which will also serve as the course for most of the race. The course heads east from Cottage Grove nearly all the way to the nearby town of Deerfield, where runners hit the turnaround point and head back along the trail to the race finish line.
(MORE: Parkinson’s Half Marathon event details)