Summer ultramarathons in New Hampshire, United States

Six-loop 50K on technical, rocky singletrack with roots, foot bridges, over 4,000 feet elevation gain, minimal doubletrack, and frequent aid access

Three-day, 75-mile stage race on the SRKG Greenway with 15,500 feet of elevation gain, technical single-track, steep climbs, and lakeside scenery

Out-and-back route through the White Mountains, summiting three 4,000-foot peaks and covering up to 108 miles with 29,000 feet of elevation gain

Mountainous 50K route across Snow's Mountain, East Osceola, Osceola, and Tecumseh, 7,700 feet of elevation gain, scenic trails, multiple aid stations