Mammoth Bar Trail Runs

  • Date Sun 7th September 2025
  • Time 8:30AM PDT
  • Location Auburn, California
  • Price $42.34 - $74.14
  • Races 3 races
  • Distances Half Marathon, 10km, 5km

Event summary

Get ready for an exhilarating day of trail running at the Mammoth Bar Trail Runs, taking place on Sunday, September 7, 2025, in the stunning Auburn, Placer area of California. This event invites runners of all levels to experience the challenging single-track and double-track trails of the Mammoth Bar OHV Area, nestled within the beautiful Auburn State Recreation Area. Known as the Endurance Capital of Auburn, this location offers steep climbs and heart-pounding descents, all while treating participants to breathtaking views of the American River Canyon.

With a focus on maximizing vertical gain, the Mammoth Bar Trail Runs promise an unforgettable adventure in nature. Whether you're aiming for a personal best or simply looking to enjoy the outdoors, this event guarantees a unique running experience. Don't miss out on the chance to conquer these dynamic courses and embrace the vibrant spirit of trail running!

Organiser's Description

_"STANDARD DISTANCE. MAMMOTH VERT."_

Mammoth Bar Trail Runs take place on the single-track and double-track trails of Mammoth Bar OHV Area in Auburn State Recreation Area, in the Endurance Capital of Auburn, California.

Mammoth Bar is known for its steep climbs and descents, as well as it's beautiful American River Canyon views.

These are not your average courses. You get more vert per dollar! Yay!

Mammoth Bar is a new event put on by Skybreaker Racing's Race Director under the Singletrack Running umbrella.

Races

  • Half Marathon

    Incl. $5.14 Fee & T-Shirt

    Sun 7th September 2025 (8:30AM PDT)

    $74.14

    Elevation gain is approximately 4,300 ft. Aid Stations: Castle Rock Aid: mile 2 F.D.L. Aid: mile 5 Castle Rock Aid: mile 11.3
  • 10k

    Incl. $3.94 Fee & T-Shirt

    Sun 7th September 2025 (8:45AM PDT)

    $52.94

    Elevation gain is approximately 1,900 ft. Aid Stations: Castle Rock Aid: mile 2 Castle Rock Aid: mile 4.5
  • 5k

    Incl. $3.34 Fee & T-Shirt

    Sun 7th September 2025 (9:00AM PDT)

    $42.34

    Elevation gain is approximately 955 ft. No Aid Stations.

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Location

Old Foresthill Rd, Auburn, 95603, CA, United States

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Sep 7, 2025

$42.34 - $74.14