Massanutten Mountain Trails 100 Mile Run

Fort Valley, United States • 16 May 2026

The Massanutten Mountain Trails (MMT) 100 Mile Run is a challenging ultramarathon held in the Massanutten Mountains within Virginia’s Shenandoah Valley. Starting and finishing at Caroline Furnace Lutheran Camp in Fort Valley, VA, the rugged course features rocky trails and steep climbs totaling over 18,000 feet of elevation gain. Participants must complete the 100-mile race within a 36-hour cutoff. The event is organized by the Virginia Happy Trails Running Club and includes support for solo runners, pacers, and crews. Training runs on the course are offered in the months leading up to the race, enhancing preparation for this demanding mountain trail run. Visit the organization's website for the most recent information.

Race information

100 mi
18500 m+
100 Mile Run
Visit the organization's website for the most recent information.
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