Mammoth TrailFest is an annual trail running festival set in the stunning Mammoth Lakes region of California, attracting trail running enthusiasts from all over. The event offers a range of races, including the 26K and 50K, which take participants through rugged mountain trails, picturesque forests, and around serene alpine lakes. Known for its challenging courses and breathtaking scenery, the festival provides a unique opportunity for both seasoned runners and newcomers to experience the beauty of the Eastern Sierra. With a festive atmosphere, stunning landscapes, and a sense of community, Mammoth TrailFest is more than just a raceāit's a celebration of trail running and outdoor adventure.
Races
82km
50km
26km
Race Date:
19 September, 2025
The Mammoth Trail Fest Ultra 82km on September 19, 2025, takes runners through 4,084 meters of elevation gain in the rugged terrain of Mammoth Lakes, California. Organized by Eastern Sierra Running, LLC, this race offers a challenging course with breathtaking views of the Eastern Sierraās peaks and valleys.
Weather based on historical averages.
FAQs
What is the Mammoth Trail Fest Ultra 82km?
How long is the Mammoth Trail Fest Ultra 82km?
Where does the Mammoth Trail Fest Ultra 82km take place?
What is the elevation gain of the Mammoth Trail Fest Ultra 82km?
How can I prepare for the Mammoth Trail Fest Ultra 82km?
How do I choose the right training plan for the Mammoth Trail Fest Ultra 82km?
The Mammoth Trail Fest Ultra 82km on September 19, 2025, takes runners through 4,084 meters of elevation gain in the rugged terrain of Mammoth Lakes, California. Organized by Eastern Sierra Running, LLC, this race offers a challenging course with breathtaking views of the Eastern Sierraās peaks and valleys.
The Mammoth Trail Fest Ultra 82km is 82km long.
The Mammoth Trail Fest Ultra 82km takes place in Mammoth Lakes, California, USA.
The Mammoth Trail Fest Ultra 82km elevation gain is 4084 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Mammoth Trail Fest Ultra 82km?
The Mammoth Trail Fest Ultra 82km on September 19, 2025, takes runners through 4,084 meters of elevation gain in the rugged terrain of Mammoth Lakes, California. Organized by Eastern Sierra Running, LLC, this race offers a challenging course with breathtaking views of the Eastern Sierraās peaks and valleys.
How long is the Mammoth Trail Fest Ultra 82km?
The Mammoth Trail Fest Ultra 82km is 82km long.
Where does the Mammoth Trail Fest Ultra 82km take place?
The Mammoth Trail Fest Ultra 82km takes place in Mammoth Lakes, California, USA.
What is the elevation gain of the Mammoth Trail Fest Ultra 82km?
The Mammoth Trail Fest Ultra 82km elevation gain is 4084 metres, which Runna classifies as a Hilly race.
How can I prepare for the Mammoth Trail Fest Ultra 82km?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Mammoth Trail Fest Ultra 82km?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
More
Sport:
Running
Tags:
Nature
Altitude
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Mammoth TrailFest or Eastern Sierra Running, LLC. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Mammoth TrailFest website.
