12hr ultramarathons in Pennsylvania, United States

Rolling grassy hills on a compact cross country loop with team relay format, dusk headlamps required, and awards for most laps completed

5-mile loop at Camp Mack with 876 feet of elevation gain, combining wide track, single track, dirt, and gravel; course reverses direction during the event

12-hour ultrarun on a 5-mile loop with 95% rustic single and double track, slight elevations, flat stretches, flexible pacing, aid stations, and tent areas

Technical single-track and double-track trails along Unami Creek, with rocks, roots, mud, varied elevation, and scenic woodland terrain at Camp Hart.

One-mile loop on grass and mulched paths, winding around ponds and open fields with light elevation gain and continuous on-course support.

1.05-mile loop with macadam, gravel roads, and dirt trails, flexible course options in a relaxed setting, 12-hour marathon distance tracking

Hourly loops on varied trails through McKaig Nature Center, with customizable distances and an extra capstone lap amid natural scenery.

Flexible course with single loop or up to 12-hour endurance challenge, optional weighted backpack, fundraising for Folds of Honor Western PA

Flexible course with single loop or up to 12-hour endurance challenge, optional weighted backpack, fundraising for Folds of Honor Western PA

Scenic 3-mile lake loop on single track trails with 200 feet of elevation gain per lap, 12-hour solo or relay format

USATF certified all-purpose track, eco-conscious cup-less setup, trackside support and nearby amenities at Academy Parks Knight Track in Sharon Hill

Scenic 12-hour ultra on gently rolling dirt and crushed rock loops in Boiling Springs, solo or team format, with on-course support and milestone rewards.

Technical single track and double track loops through shaded forests, rocky and root-laden trails, and Blue Mountains scenery at Bashore Scout Reservation.

Smooth, fully paved loop at Bob Rodale Cycling & Fitness Park, with wide repeat laps, sun and shade, and a central pit stop area.