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Inyo Craters Loop



11.7 mile 18.9 kilometer loop
10% Singletrack


Ascent: 696' 212 m
Descent: -700' -213 m
High: 8,161' 2,487 m
Low: 7,713' 2,351 m


Avg Grade: 2% (1°)
Max Grade: 8% (5°)


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Map Key

Trail shared by Alan Jacoby

Loop around the two Inyo Craters, which were formed from a volcanic explosion 1,500 years ago.

Alan Jacoby

Electric Mountain Bikes Allowed

Features -none-


The Inyo Craters Loop is an old school Mammoth ride. It was one of the earliest USFS signed bike routes. Other than the Inyo Craters Singletrack (which we include with our version of the loop), the terrain is pretty much jeep roads. There is moderate climbing, with some sweet views and a good tour of the area. This is a relaxing ride thats definitely worth doing for some peaceful exercise.

Need to Know

**NOTE FOR WINTER / FAT BIKE RIDING This route is usually packed by snowmobiles and trucks before grooming starts for the season. Other than the singletrack section (which sees no winter use) the rest is usually fun on a fat bike with low tire pressure. Remember, once grooming starts, all groomed trails are OFF LIMITS to bikes. Click here for the grooming report to see if its currently legal to ride.

Questions? Contact Fat Bike Mammoth.


From Mammoth, drive up Highway 203 towards Main Lodge of Mammoth Mountain Ski Area. Make a right on Mammoth Scenic Loop. At 2.75 miles, turn left on 3S30 at the Inyo Craters sign. Go 0.3 miles. The road will split and theres a dirt parking area on the right. The ride starts here. The singletrack is to the right, and theres a small sign with no trail name (see photo).

Soon after finishing the singletrack section, you ride out of the forest and a huge pumice flat opens up in front of you. 360-degree wicked views await, including San Joaquin Ridge and White Wing Mountain. Next you enter a Jeffrey Pine Forest and cross Deadman Creek before paralleling the creek and curving around and starting back towards the craters. After a peaceful ride through the forest, you arrive at the main parking lot. Lucky for you, you get to ride the singletrack back the way you came. Nice!

For more info, including turn by turn directions, check out Fat Bike Mammoth. You can also use the MTB Project mobile app for wayfinding alonng the route.


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Oct 6, 2018
Justin Park
May 13, 2018
David LaPlante
Oct 14, 2017
Melissa Pamer
Jul 13, 2017
Tom B
Sep 24, 2016
Sir Adam Abille
Dry and loose. Some rocky and rooty sections but not steep at all. Sandy uphill near the end. Pretty chill ride. 11.9mi — 10h 00m
Nov 17, 2015
Matt Hage
1h 30m

Trail Ratings

  2.8 from 8 votes


  2.8 from 8 votes
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in California


63 Views Last Month
3,827 Since May 9, 2015



Through the sage
Aug 31, 2014 near Mammoth…, CA
The Inyo Craters trailhead
Aug 31, 2014 near Mammoth…, CA
A view from Crater Flats
May 9, 2015 near Mammoth…, CA

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