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Mammoth TUFF
Saturday, September 19, 2026 · Mammoth Lakes, United States
Distances
37km
64.4km
108.6km
148.9km
About this race
The fourth annual Mammoth TUFF, a gravel event and adventure festival in Mammoth Lakes, challenges riders. Shorter routes circle the caldera; the long course travels through the Volcanic Tableland. Expect adventure on wild terrain.
Start location
TUFF Ventures
6201 Minaret Rd
Mammoth Lakes, CA