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Ironstone 100K Ultra

Name: Ironstone 100K Ultra
Start: 2025-07-12
End: 2025-07-12
Location: Hollidaysburg

Hollidaysburg, United States • 12 Jul 2025

The Ironstone 100K Ultra is a challenging 100-kilometer point-to-point ultramarathon held in the Allegheny Mountains of Pennsylvania. Starting at Canoe Creek State Park in Blair County and finishing at Greenwood Furnace State Park in Huntingdon County, the course traverses rugged trails including the Standing Stone, Mid State, and Lower Trails. Notable features include ridge running atop Tussey Mountain, old-growth pines at Alan Seeger Natural Area, and craggy ledges at Indian Wells. The race demands technical skill, with limited aid stations, no pacers, and night running, all to be completed within 23 hours. Finishers receive a unique metal award, a flannel shirt, and complimentary beverages. Visit the organization's website for the most recent information.

United States Pennsylvania Hollidaysburg

Race information

Website Registration

100 km

100k

Visit the organization's website for the most recent information.

Trail runs nearby

Saturday Jul 5

Chernisky Classic

Ebensburg - 18 mi from Hollidaysburg

5 km

10 km

The Chernisky Classic is an annual running event held in Ebensburg, PA, featuring a 5K run/walk and a 10K run on the scenic Ghost Town Trail, recognized as the 2020 DCNR Trail of the Year. Scheduled for July 5, 2025, this family-friendly event includes a free Firecracker Race for children aged 8 and..

Saturday Jul 26

Lost Turkey Trail Races

Imler - 16 mi from Hollidaysburg

10 km

13 mi

50 km

The Lost Turkey Trail Races, held in Imler, Pennsylvania, offer challenging trail running events through Central Pennsylvania’s scenic ridges and valleys. The race features a grueling 50k point-to-point course along the Allegheny Front, culminating at Blue Knob, as well as a half-marathon loop and a..

Saturday Sep 6

Jim Mayer Trail

Vinco - 25 mi from Hollidaysburg

5 km

10 km

The Jim Mayer Trail Family Fun Run, held in Johnstown, PA, features 5K and 10K out-and-back courses along the scenic Jim Mayer Riverswalk Trail. The 10K route extends from Riverside to Sandyvale, following the Stonycreek River and passing notable Trail Art Murals near the old trolley bridge in Moxha..

Saturday Sep 13

Rock 'n The Knob Trail Challenge

Claysburg - 9 mi from Hollidaysburg

10 km

20 km

50 km

The Rock 'N The Knob Trail Challenge, held in Claysburg, Pennsylvania, is the state's highest trail race, taking place atop Blue Knob Mountain at over 3,100 feet elevation. The event offers three challenging courses: a 10K "Short Course" featuring steep climbs and technical terrain; a 20K-25K "Mediu..

Saturday Oct 4

Chernisky Ghost Town Trail-a-thon

Ebensburg - 18 mi from Hollidaysburg

The Chernisky Ghost Town Trail-a-thon, held in Ebensburg, PA, is a multi-distance running and biking event set for October 4, 2025. It features a marathon (26.2 miles), 15-miler, 5k, and a unique Couch Potato 0.0k for casual participants. The marathon and 15-miler courses traverse scenic trails incl..

Saturday Apr 11

Dirty Kiln Trail Races At Canoe Creek

Hollidaysburg

10 km

13 mi

The Dirty Kiln Trail Races at Canoe Creek, held in Hollidaysburg, PA, is an annual trail running event organized by Allegheny Trailrunners, Inc. The 13th running is scheduled for April 11, 2026, featuring two race options: a short course approximately 10K and a more challenging half-marathon long co..