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Ironstone 100K Ultra

Hollidaysburg, United States • 11-12 Jul 2026

Ironstone 100K is a 100-kilometer (62-mile) point-to-point ultramarathon in the Alleghenies of central Pennsylvania, spanning Blair, Huntingdon, and Centre counties. The race begins at Canoe Creek State Park and winds through rugged, technical terrain after a fast start along the Lower Trail. There are no pacers, limited aid stations, and a 23-hour time limit, making endurance and strategy essential. A defining feature is a long nighttime traverse along the Mid State Trail atop the Tussey Mountain ridgeline, with views of old-growth pines, ledges, and dramatic sunsets and sunrises. Finishers receive a metal medal, Ironstone flannel, and a post-race feast. Visit the organization's website for the most recent information.

United States Pennsylvania Hollidaysburg

Race information

Website
100 km
Ironstone 100k (100 Kilometers)
Visit the organization's website for the most recent information.
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