trailfest. MERCH 👚
2025 Results ⏰
2025 LIVESTREAM 🎥
RUNNER PHOTOS 📸

presented by

sep 18-21, 2025

mammoth lakes, ca

join us

join us for a MAMMOTH-SIZED gathering of trail community

fest.

supported by

mammoth trailfest. operates on permitted area and uses authorized facilities located on the National Forest and under special use permission from the Forest Service