21st Lean Horse Ultra-Marathon 50 Mile
21st Lean Horse Ultra-Marathon 50 Mile is a 80.5 km ultramarathon in Custer, SD, United States, taking place on Aug 15, 2026.
- Date
- Aug 15, 2026
- Distance
- 80.5 km
- Location
- Custer, SD, United States
- Format
- Fixed distance