Mono County Prepares to Host the Mammoth 200 Foot Race October 2–6
Ultra-endurance event spanning 218 miles across Mono County projects a $1.3 million local economic impact

FOR IMMEDIATE RELEASE
Mono County Prepares to Host the Mammoth 200 Foot Race October 2–6
Ultra-endurance event spanning 218 miles across Mono County projects a $1.3 million local economic impact
MONO COUNTY, Calif. (September 21, 2026) – Mono County is gearing up to welcome 250 elite ultra-runners from around the globe for The Mammoth 200, a world-class foot race taking place from October 2–6, 2026. The grueling course challenges participants to cover approximately 218 miles and conquer 32,000 feet vertical gain across a scenic loop through Mono County.
The event brings significant economic benefits to the Eastern Sierra, with a projected local economic impact of $1.3 million. To support local businesses, race organizers are actively collaborating, promoting and posting about all area businesses that get involved or feature the race’s live stream during event week.
“Events like The Mammoth 200 highlight the breathtaking natural, rugged beauty of Mono County while providing a vital boost to our local economy,” said Jennifer Kreitz, Chair of the Mono County Board of Supervisors (District 1). “We are thrilled to welcome these inspiring athletes, their crews, and spectators to our communities. Beyond the economic impact, this event showcases the Eastern Sierra as a world-class outdoor destination while demonstrating how major events can successfully operate in harmony with our daily community life.”
Key public safety measures include:
- Detailed Emergency Action Plan (EAP): Developed in direct coordination with Mammoth Hospital and Mammoth Mountain Ski Patrol, the race’s comprehensive EAP integrates support from Mono County Search & Rescue, the Mono County Sheriff’s Department, California Highway Patrol, local fire departments, and HAM radio operators.
- No Road Closures: There will be no road closures during the 109-hour event. The course remains open, and runners are instructed to obey all traffic laws, yield to emergency vehicles, and share roads and trails with the public.
- Roadway Signage: Drivers should watch for Special Event Signage on shared roads throughout the county. Variable Message Signs will be utilized along the June Lake Loop to notify motorists of foot traffic.
- Race Quiet Hours: Countywide quiet hours will be strictly enforced from 9:00 PM to 7:00 AM.
What Residents and Drivers Can Expect:
- Runner Footprint & Spacing: Entrants will spread out significantly across the 218-mile route. Residents may see small groups or solo runners walking or jogging on road shoulders and trails. Due to the extreme physical demands, runners may appear fatigued, limping, or exhibiting the “ultra lean” (a temporary lateral leaning posture).
- Pacers & Crew Vehicles: Beginning at Mile 52 (Crowley Lake), runners are permitted one pacer to accompany them for safety. Crew vehicles are limited to one pass per runner to manage parking and traffic at designated aid stations.
“Our primary goal is to deliver a world-class ultra-endurance experience while being exceptional neighbors to the communities we pass through,” said Tim Tollefson, Founder and Race Director of The Mammoth 200. “Mono County provides an extraordinary backdrop for an adventure of this magnitude. We’ve worked closely with local, state, and federal agencies to ensure a safe, environmentally conscious event. If you see our runners out on the course, we encourage everyone to honk, cheer them on, and show them the incredible spirit of the Eastern Sierra.”
Community Involvement & Volunteer Opportunities
Organizers are still seeking additional volunteers to assist with various race operations throughout the multi-day event. Local businesses and non-profit organizations interested in sponsorship can also take advantage of bespoke marketing plans and opportunities for monetary donations to local programs. If you are interested in volunteering, please visit themammoth200.com/volunteer.
How to Follow the Race
Supporters and community members can track runners in real time via GPS Spot trackers, timing mats, and live stream coverage. Links to the live tracking portal and the interactive course map are available on the official event website at themammoth200.com.
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