A one-of-a-kind journey through grit, heritage, and the wild, raw beauty

If Pulitzer Prize-winning historian and writer David McCullough had laced up trail shoes and run ultramarathons, the Ironstone 100K would’ve been his race of choice.

This is more than a test of endurance—it’s a passage through time, where every footfall echoes with stories etched into the stone, soil, and soul of the land.

Runners cross old frontier roads carved through the Alleghenies, trace the path of the Pennsylvania Canal, and follow the steel spine of the cross-state corridor of the Main Line. The course winds through battlegrounds of indigenous peoples, the fiery heart of the industrial revolution, and the quiet triumph of modern conservation. Beneath it all, the land itself is ancient—shaped by rivers older than memory and mountains that have endured for eons.

Ironstone 100K is a race unlike any other. A one-of-a-kind journey through grit, heritage, and the wild, raw beauty of The First Frontier.

Step into the story: https://www.ironstone100k.com/course-narrative-part-one