Mammoth Tuff

September 18-20, 2026. Mammoth Lakes, CA is the gateway to mountain adventure and is now hosting a gravel event, brought to you by Amanda and David Sheek

[Mammoth Tuff @MammothTuff]

WELCOME
📸 @visitmammoth

[CAL FIRE BDU @CALFIREBDU]

@BLMca @MonoSheriff @ALERTCalifornia Update: 10-20 homes impacted by fire. Fire continues to push towards Crowley Lake, wind speeds are currently 12-16 MPH out of the South with gusts up to 24.
Aircraft have been grounded due to inclement weather.

[Mammoth Tuff @MammothTuff]

Help Lucas represent Team USA at the UCI Gravel World Championships! He qualified at Mammoth and we're stoked for him... Every little bit counts! Please consider donating and sharing. https://t.co/kP9euglOUh

[Gravel Bike California @GravelBikeCal]

Eastern Sierra Gravel: Mammoth Tuffest (4K)
https://t.co/ntLsdy8Uil
@MammothTuff

[Mammoth Tuff @MammothTuff]

TUFF CAMPS - What's it REALLY like? https://t.co/wFqrxj1LKf via @YouTube

[Mammoth Tuff @MammothTuff]

2025 Registration is open:
https://t.co/j4AMIcMYyF

[Velo @velovelovelo__]

Amanda Nauman knows a lot of people still have baggage around the UCI and gravel. But she's willing to experiment if it means saving her own race.

https://t.co/dZKhkdkVoH

[Gravel Bike California @GravelBikeCal]

NEW YOUTUBE(4K): A Gravel Weekend at Mammoth Tuff.
@MammothTuff @gravelstoke
https://t.co/yXS0G0dUwz

[Caltrans District 9 @Caltrans9]

ATTN DRIVERS: U.S. 395 has FULLY REOPENED between State Route 108 (Sonora Pass) and Burcham Flat Road in Mono County. There are no traffic controls this weekend. One-way traffic control with delays of up to 20 minutes through the project area will resume on Monday.

[Mammoth Tuff @MammothTuff]

Post-event newsletter icymi:
https://t.co/pIrGRA2XZD

[Mammoth Tuff @MammothTuff]

2024 Post-event survey:
https://t.co/0qQMiOBmbo

[Caltrans District 9 @Caltrans9]

ICYMI: The full closure of U.S. 395 from just south of State Route 108 (Sonora Pass) to just east of Burcham Flat Road through the Sonora Junction Shoulders Project has been EXTENDED until Saturday, September 21 at 5:00 pm due to rain in the forecast.

[Mammoth Tuff @MammothTuff]

Mammoth Tuff Recap: A Ride Through Epic Landscapes and Gritty Terrain https://t.co/qKvkvrbMY7

[Caltrans District 9 @Caltrans9]

ATTN DRIVERS: U.S. 395 north of Bridgeport will CLOSE for 15 days starting tomorrow at 6:00 am. This closure is part of the Sonora Junction Shoulders Project and is necessary for crews to install two wildlife crossings.

Click here for detour information: https://t.co/f26iuC3K3U

[Mammoth Tuff @MammothTuff]

Raffle prizes updated!! Check it out! https://t.co/bkvYTtwr8t
@LoveMammoth @_mmcf_

[Mammoth Tuff @MammothTuff]

If you haven’t entered the Intergalactic Gravel Getaway yet, you have until THIS SUNDAY, September 1st
@ridewithgps
ENTER HERE! https://t.co/2cqtKUsZ80

[Caltrans District 9 @Caltrans9]

REMINDER: This is the detour for the closure of U.S. 395 that starts next week. If you're planning to visit Bridgeport, Twin Lakes, Walker, Coleville, or Topaz, those communities will be open and accessible.
More details on the closure can be found here: https://t.co/3nSlDmqeY2

[Mammoth Tuff @MammothTuff]

Woo! See you soon!

[Mike Hudson @mhudson_nc]

just @BikeReg'd for @MammothTuff - https://t.co/eDP8WiQd1U #MammothTUFF

[Mammoth Tuff @MammothTuff]

The 2024 TUFF Guide is now posted!
https://t.co/GJ1wvLS2CM

[Brian Kelly @Brian_Kelly19]

Owens River Road loop with a climb up to Convict Lake.

Mammoth Lakes, CA

@MammothTuff @GravelBikeCal

[Mammoth Tuff @MammothTuff]

4th of July Newsletter is here:
https://t.co/ASVFAdnYYN