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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 point-to-point ultramarathon set in the scenic Alleghenies, starting at Canoe Creek State Park and finishing at Greenwood Furnace State Park. This 100-kilometer race features rugged terrain, including sections of the Standing Stone, Mid State, and Lower Trails, making it one of the toughest ultras in the region. Participants must complete the race within 23 hours, navigating technical trails with limited aid stations and no pacers. To enter, runners must have completed a qualifying 50K trail race. Finishers receive a unique medal, 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

Ironstone 100K

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

Trail runs nearby

Saturday Apr 12

Dirty Kiln Trail Races At Canoe Creek

Hollidaysburg

10 km

21 km

The Dirty Kiln Trail Races at Canoe Creek, organized by Allegheny Trailrunners, Inc., is set to take place on April 12, 2025. This event features two race options: a Short Course (approximately 10K) and a Long Course (Half-Marathon). Participants will navigate a variety of trails, including wide pat..

Sunday May 4

Greenwood Furnace Trail Challenge

Huntingdon - 20 mi from Hollidaysburg

13 mi

The Greenwood Furnace Trail Challenge is an exciting running event held at Greenwood Furnace State Park in Huntingdon, PA, featuring both a 10K and a half-marathon option. The 10K route includes a challenging climb up Greenwood Spur and a steep descent via Ruff Gap Trail, while the half-marathon off..

Saturday May 24

Path Of The Flood Historic Races

Johnstown - 29 mi from Hollidaysburg

5 km

12 km

22 km

The Path of the Flood Historic Races, hosted by the Johnstown Area Heritage Association, is an annual running event that features multiple race distances, including a challenging 14-mile course. Participants can experience scenic trails, including a new Trolley Line Extension, while commemorating th..