Tarc Wapack and Back
Ashburnham, United States • 9 May 2026
TARC Wapack and Back
The Trail Animals Running Club presents trail races along the Wapack Trail between Mount Watatic in Ashburnham, Massachusetts and North Pack Mountain in Greenfield, New Hampshire. The event offers three distances:
- 21.5 mile end to end on the Wapack Trail
- 43 mile ultramarathon
- 50 mile ultramarathon
The trail is technical and rocky, with roughly 4,600 feet of elevation in each direction and about 10,800 feet of elevation on the 50 mile course. The route passes rocky ledges and offers long views to the east and west. The trail is blazed with yellow triangle markers; participants should carry navigation aids and backtrack if they miss a marker. There are five aid stations that provide water and some food, spaced no more than seven miles apart. A post race potluck is planned at the finish.
Practical notes from organizers include a Leave No Trace policy, a land acknowledgement for the Wabanaki people, and manual timing with results posted later in the week. Headlamps are required for 43 and 50 mile entrants. Drop bag service is available at specified mileage points with size limits. Portable restrooms are provided at the trailhead parking and the 21.5 mile pickup location.
Registration is limited, often fills, has a no refund policy, and offers youth discounts and a pregnancy deferral option. Adaptive athletes may participate with appropriate equipment and prior coordination. Visit the organization's website for the most recent information.