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Inyo Craters Loop

 2.8 (8)
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11.7 Miles 18.9 Kilometers



696' 212 m


-700' -213 m



Avg Grade (1°)


Max Grade (5°)

8,161' 2,487 m


7,713' 2,351 m


Shared By Alan Jacoby



Getting forecast...

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

Alan Jacoby

Dogs Unknown

Features eMTB allowed


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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Your Check-Ins


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


24 Views Last Month
2,951 Since May 9, 2015
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This trail is pretty lame IMO. I guess it's a good workout ride if you're super hungry. I started in town so by the time I got back I was pretty beat. You basically follow fire roads the whole time so the ride is super not technical. At certain point the road basically turns to sand so that makes things pretty tough going and you'll have to walk your bike for a bit. Meh. Mar 27, 2018
I rode this trail in June 2018. I wouldn't ride it again. There were a few single track sections that were great. But the majority of the ride was very wide, sandy road. Very sandy, for miles. In my opinion, the sand took the fun out of it. Also I was not overly impressed with the views either. Feb 18, 2019

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