D Trail - Groomed Snowmobile Trail 11.2 mi

Overview
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The D Trail, part of the Winter Grooming Snowmobile system for over-snow vehicle (OSV)/snowmobile use, is a popular and highly scenic trail that runs east from the OSV staging area at Deadman Summit on Hwy 395 to the warming hut on the 9,046-foot summit of Bald Mountain. Groomed and marked with orange diamonds, the trail goes through old-growth Jeffrey pine forest and wide-open flats popular with snowmobilers looking to play off-piste. The historic warming hut is maintained by volunteers and the US Forest Service, and offers a great place to have a picnic lunch and enjoy sweeping 360-degree views of the entire Long Valley Caldera. The Winter Grooming Snowmobile System is groomed by the U.S. Forest Service with funding provided by the California Department of Parks and Recreation, using monies generated by registration fees and gasoline taxes.
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The D Trail, part of the Winter Grooming Snowmobile system for over-snow vehicle (OSV)/snowmobile use, is a popular and highly scenic trail that runs east from the OSV staging area at Deadman Summit on Hwy 395 to the warming hut on the 9,046-foot summit of Bald Mountain. Groomed and marked with orange diamonds, the trail goes through old-growth Jeffrey pine forest and wide-open flats popular with snowmobilers looking to play off-piste. The historic warming hut is maintained by volunteers and the US Forest Service, and offers a great place to have a picnic lunch and enjoy sweeping 360-degree views of the entire Long Valley Caldera. The Winter Grooming Snowmobile System is groomed by the U.S. Forest Service with funding provided by the California Department of Parks and Recreation, using monies generated by registration fees and gasoline taxes.

Conditions Update

02/21/2023: Groomed OSV Network Update: D Trail was groomed on 2/16

Avalanche Forecast for 03/20/2023

AVALANCHE FORECAST: Very dangerous avalanche conditions exist this morning where the most new snow has fallen, especially around Mammoth. Traveling on and below wind-loaded terrain is not recommended. New snow could be sensitive to human triggers and could shed as wet snow avalanches as the storm clears. Avalanches breaking in new and drifted snow could step down to deeply buried weak layers resulting in a much larger slide. Conservative decision-making will be essential for safe travel, even outside of the Mammoth area today. Find out More

Info
Directions

Trail Activities
Public Services
Trail Information
- Snow
- A standard ramp is 8%. Conditions subject to change.
This trail can be accessed at the junction of Highway 395 and Bald Mountain Road.
- Get driving directions to Highway 395 and Bald Mountain Road
- Get public-transit options*
*Note that not all facilities are accessible via public transit.