6hr ultramarathons in Massachusetts, United States

Scenic 1.9-mile loop at Notchview with a 0.2-mile climb, rolling single and double track, open fields, and cross-country ski trails

Jug End Loop Trail course with woods, fields, apple orchard, and 830 feet of elevation change per 4.2-mile lap; moderately challenging terrain

Double-track trails through tranquil woodlands and past military bunkers, hard-packed earth and gravel, gentle rolling hills, and moderate elevation gain.

Repeated out-and-back laps on the WWII Veterans Memorial Trail, mixing pavement, gravel and grass with a weight-carry strategy format.

6-hour ultramarathon on a 5K loop at Wright Locke Farm, featuring rocky terrain, rolling hills, and goats along the course

New England dirt trails marking the return of spring, with fresh terrain after winter

5-mile scenic trail loop with 600 feet of elevation gain, historic railroad bed, granite quarry, bridge crossings, and hill summits in Dunstable, Massachusetts