I Trail - Groomed Snowmobile Trail 12.9 mi

  • The I Trail, part of the Winter Grooming Snowmobile system for over-snow vehicle (OSV)/snowmobile use, is a popular connector trail between June Lake Junction and the A and D Trails. There is a general store and gas station at the junction of Highway 395 and Highway 158. Groomed and marked with orange diamonds, the trail crosses through the OSV tunnel under Hwy 395 north of June Lake Junction and heads out toward a small volcanic crater dubbed Devil's Punchbowl before straight-lining south to Deadman Summit. From here, the trail heads east and climbs toward the rim of the Long Valley Caldera, offering extensive views and multiple connections toward Bald Mountain Summit or south toward Lookout Mountain and Mammoth Lakes. 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. Click here for current snowmobile grooming info.

  • The I Trail, part of the Winter Grooming Snowmobile system for over-snow vehicle (OSV)/snowmobile use, is a popular connector trail between June Lake Junction and the A and D Trails. There is a general store and gas station at the junction of Highway 395 and Highway 158. Groomed and marked with orange diamonds, the trail crosses through the OSV tunnel under Hwy 395 north of June Lake Junction and heads out toward a small volcanic crater dubbed Devil's Punchbowl before straight-lining south to Deadman Summit. From here, the trail heads east and climbs toward the rim of the Long Valley Caldera, offering extensive views and multiple connections toward Bald Mountain Summit or south toward Lookout Mountain and Mammoth Lakes. 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. Click here for current snowmobile grooming info.

Trail Alerts

  • 03/12/2018: SNOW AND WINTER CONDITIONS EXIST ABOVE 8000 FEET. EARLY SPRING CONDITIONS EXIST ON LOWER ELEVATIONS.

Avalanche Forecast for 04/19/2018

  • Thursday – Cloud skies and cool temperatures today will limit Loose Wet activity to primarily Friday when skies clear and temperatures quickly rebound into the 40’s and 50’s. Recently formed Wind Slabs (4/16) have generally settled and strengthen and are primarily limited to small isolated pockets in steep and complex terrain. Northerly winds are forecasted to increase overnight into Friday but the lack of abundant transportable snow will limit new Wind Slabs to isolated areas where there is a l Find out More

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