About This Race
The Mill Stone 50K is a rugged trail ultramarathon held at the Anne Springs Close Greenway in Fort Mill, South Carolina, consisting of three challenging 10.5-mile loops through a 2,100-acre private nature preserve. Managed by the Rock Hill Striders, this technical race eschews paved paths for single-track trails, creek crossings, and rolling Piedmont terrain.
What Makes It Unique
- The Sacred Mill Stone: Runners pass the original granite millstone from Webb's Mill and are traditionally 'strongly encouraged' to touch the stone for good luck, a ritual central to the local running community.
- Technical Loop Terrain: The course is notoriously muddy and technical, featuring narrow single-track trails, replaced suspension bridges, and at least two significant creek crossings per loop.
- Spectator-Friendly Hub: The multi-loop format centers around the high-energy Rush Pavilion at Lake Haigler, where spectators can enjoy food and craft beer from the Gateway Canteen while cheering for runners three separate times.
Media Coverage
This Week In Running: February 10, 2025
iRunFar
This editorial recap features the 2025 Mill Stone 50K results, highlighting John Olar and Heidi Sides as the top male and female finishers.
This Week In Running: February 12, 2024
iRunFar
The article reports on the 2024 race results where Drew Marshall set a new course record and Louise Hindal Acer took the women's victory.
Course Knowledge and the Mill Stone 50K
NRV Runs
An interview with veteran ultrarunner Brett Sherfy discussing his racing resume, including insights into the Mill Stone 50K and advice for novice trail runners.