Mammoth Bar Trail Runs
- Date
- September 6, 2026
- Location
- Old Foresthill Rd, Auburn, CA
- Distance
- Half Marathon · 10K
From the Organizer
"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!
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
89°
Typical Low
61°
Chance of Rain
3%
Based on US Climate Normals data from Auburn, 2 mi from the venue.
Host City
About Auburn, CA
Elevation
1,509 ft
Nearest Airport
SMF
Sacramento International Airport · 32 mi
Time Zone
Pacific Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Mammoth Bar Trail Runs, put it on the calendar, and turn “someday” into a start date.
Coming Up
More Running races near Auburn, CA
Run Fast… or Pretend Like You Are (100 Mile relay & Challenge)
Less than a mile away
The Auburn Mile
Less than a mile away
Mile Madness Endurance Run
Less than a mile away
Run for Coffee 5k / 10k / 13.1 - Roseville
Half Marathon · 10K · 5K
13 miles away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the Mammoth Bar Trail Runs?
- Mammoth Bar Trail Runs is a running race held in Auburn, California on September 6, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Mammoth Bar Trail Runs?
- Sunday, September 6, 2026 in Auburn, California at Old Foresthill Rd, Auburn, CA. Check the event page for exact start times and wave schedules.
- How do I register for the Mammoth Bar Trail Runs?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Mammoth Bar Trail Runs
Sep 6, 2026