April ultramarathons in Pennsylvania, United States

Single track and gravel loops at Jacobsburg State Park, 450 feet of elevation change per lap, options for 3-hour or 6-hour duration

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

Rugged, technical singletrack on rolling woodland terrain, challenging trails accessible only during race weekend at Forever Farm in Alburtis, PA

Challenging remote forest trails in the Pennsylvania Wilds, with rugged dirt terrain, raw scenery, and a no-frills grassroots atmosphere

Two scenic loops around Quemahoning Reservoir on wooded singletrack and rocky paths, with rolling hills, pine forests, stream crossings, and 3,100 feet of gain.

Scenic point-to-point 50k along the Schuylkill River Trail, featuring river views, Valley Forge National Park, and a mix of solo and relay options

Scenic point-to-point marathon through Lehigh Gorge on smooth hard-packed rail trails, with a gentle net downhill beside the Lehigh River

Scenic loops on dirt, grass, and gravel trails, steep climbs to Cushion Peak views, wooded paths, and winding descents around a historic carriage house