Registration is now downtown in that large mill building you pass at the finish. The actual location is the Newmarket Millspace center for art, history and culture, 55 Main Street, Newmarket, NH 03857.
From the South:
Take best route to Route 95 North. Exit at the Hampton Toll Booth to Rt 101 Exeter and Hampton. Head West towards Exeter. Exit ramp at Rt. 108 go right towards Durham and Newmarket. Follow Rt. 108 all the way into Newmarket. Park in the Industrial Lot outside of town and take the shuttle in to town, or take your chances and park at the High School, or Elementary school.
From the North:
Take best route to Durham, New Hampshire. Take Route 108 South to Newmarket. As you come into town and go over the Lamprey River Bridge you can take a chances and take an immediate right. Parking in the municipal lot is just on your left. Follow the friendly flaggers to your spot. Registration is downtown in the Mills. If no available spots continue to the High or Elementary schools for parking