Oversnow Route
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Miles (RT)
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Difficulty
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Condition
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Southwest Area Winter Routes | Elevations range from 6,700 feet to 10,457 feet
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*Park Highway Route
(main park road)
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Varies
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Varies
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*The route is not cleared, nor groomed. Snow accumulates on the road route throughout the snow season.
Active road clearing opeartions are taking place. View the alerts and condtions page.
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Sulphur Works
(via Hwy Route)
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2.0
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Beginner
(most popular route)
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Not applicable - road open to vehicles.
When closed and snow-covered -
Accumulated snow warrants the need to use skis or snowshoes to reach Sulphur Works. At times, a packed down surface may make it passable without winter equipment. Due to continually changing conditons of the snow, it is advisable to use snowshoes, skis or boot spikes.
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Lassen Peak
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17.0+
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Advanced
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Deep snow. Snow conditions vary.
Reaching Lassen Peak requires around 15+ miles of travel round trip starting from the southwest park entrance.
Snow traversing equipment is necessary. Snowshoes Snowshoes/ ski, boot crampons, and ice axe may be necessary.
Throughout the snowy season (Nov. - April), the route passes through avalanche terrain. Be avalanche aware. Avalanche gear is highly recommended.
Protect the Lassen Peak Trail; do not cut switchbacks once trail is visible.
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Ridge Lakes
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4.0
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Intermediate
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Deep patches of snow. Snow conditions vary. Navigation is necessary.
Snow traversing equipment is necessary. Suitable for snowshoes or boot spikes.
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Forest Lake
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2.4
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Intermediate
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Deep patches of snow. Snow conditions vary. Navigation is necessary.
Snow traversing equipment is necessary. Suitable for snowshoes or boot spikes.
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Brokeoff Mountain
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7.0
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Advanced
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Deep snow. Snow conditions vary. Navigation is necessary.
Snow traversing equipment is necessary. Snowshoes, ice-axe and crampons. Skiing is advanced. Snow depths vary significantly due to exposed slopes and wind-blown snow, spring melt and avalance potential.
Throughout the snowy season (Nov. - April), the route passes through avalanche terrain. Be avalanche aware. Avalanche gear is highly recommended.
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Bumpass Hell - Closed
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NOT A WINTER ROUTE. Trail is closed in winter and spring. This trail is closed every winter/spring until free of snow/ice hazards.
Trail typically re-opens in June or July. See trail opening dates from previous years, which are largely affected by snowpack. See summer trail conditions page for more information.
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Mill Creek Falls
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Deep patches of snow. Navigation is necessary.
Not advisable as a winter route with substanial snow cover.
Be aware of burn hazards such as standing dead trees.
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McGowan Cross-Country Ski Area
Lassen National Forest
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Varies
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Varies
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No longer a winter route.
Check for more information.
Be aware of burn hazards such as standing dead trees.
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Manzanita Lake Area Winter Routes | Elevation range:5,600 feet - 8,530 feet
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Park Highway Route
(main park road)
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Varies
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Intermediate
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No longer a winter route due to road clearing opearations. Read more
* Snow accumulates on the road route throughout the snow season (November - April).
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Reflection Lake Loop
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0.5
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Beginner
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No snow.
Due to exposure, sections of the route may have little to no snow or be ice covered.
Do not walk on lake ice.
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Manzanita Lake Campground Loop
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1.8
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Beginner
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No snow.
The campground road and campground loops are cleared beyond the road closure at the Loomis Plaza.
The road is open to vehicles to the Manzanita Lake boat launch and picnic area.
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Manzanita Lake Loop
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1.8
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Beginner
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No snow.
Due to exposure, sections of the route may have little to no snow or be ice covered.
Do not walk on lake ice.
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Chaos Crags Route
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4.0
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Intermediate
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No snow.
The use of snowshoes is necessary.
Not advised for skiing.
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Nobles Emigrant Route
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5.2
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Intermediate
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No snow.
The use of snowshoes, skis, or boot spikes for packed snow is necessary.
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Manzanita Creek
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7.5
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Intermediate
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econd half of trail is snow covered. Snow conditions vary. Navigation is necessary.
The use of snowshoes or boot spikes is necessary on snow-covered sections.
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Butte Lake Area | Elevation range:6,100 feet - 8,338 feet. Road closed to vehicle access during the snow season.
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Butte Lake Road
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6.0
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No longer a winter route.
During the snowy season (November - April), the road is not winter maintained. Travel by vehicle is at your own risk.
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Warner Valley Area | Elevation range: 5,600 feet - 7,408 feet. Road closed to vehicle access during the snow season.
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Warner Valley Road
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6.0
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No longer a winter route.
During the snowy season (November - April), the road is not winter maintained. Travel by vehicle is at your own risk.
Be aware of burn hazards such as standing dead trees.
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Juniper Lake Area | Elevation range: 6,700 feet - 8,048 feet. Road closed to vehicle access during the snow season.
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Juniper Lake Road
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4.0
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Snow-covered. Snow conditions vary.
The use of snowshoes or boot spikes is advised.
Be aware of burn hazards such as standing dead trees.
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