October ultramarathons in Pennsylvania, United States

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

104-mile out-and-back on Westmoreland Heritage and West Penn Trails, 7,392 feet of elevation gain, Morosini Reserve and parks in peak autumn colors

Challenging 100k along Pennsylvania's Black Forest Trail with over 13,400 ft of climbing, midnight start, rugged forests, and shifting toughest sections

Scenic 31-mile lake loop on mostly runnable trails, accessible terrain with moderate challenge, plentiful themed aid stations staffed by local runners

Rolling hills, creek crossings, and varied terrain through Glenroy Preserve’s historic landscape and Civil War-era landmarks

Rugged single-track ultramarathons on the Gerard Hiking Trail, with over 17,000 feet of elevation gain through Oil Creek State Park's scenic, demanding terrain

Towpath ultra with nonstop river views and smooth, non-technical running; a fast, forgiving route with a relaxed atmosphere.

Steep climbs, technical descents, demanding singletrack, and stream crossings through Tioga State Forest near the PA Grand Canyon

50k course through Elk State Forest combining rail trails and dirt roads amid rugged, scenic terrain of the Pennsylvania Wilds

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

Dirt trail course through Rothrock State Forest, passing parks and natural areas with 5,485 feet elevation gain and a mix of shaded woods and open vistas.

50K course with over 8000 feet of climbing across rugged trails including Mid State, Spiked Buck, Tiadaghton, Panther Run, and Torbert Trail

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

Pennsylvania trails featuring 220-mile and 110-mile routes, substantial elevation, technical terrain, panoramic views, and vibrant fall scenery

Demanding double-loop 50K on varied terrain, winding through woods, rocky sections, and lakeside trails at Green Lane Park with autumn views