Alerts & Conditions


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Roads in the Park

Lassen Volcanic National Park Highway and other park roads are closed for the winter snow season, typically November through May. Road snow clearing operations begin at the Manzanita Lake Area in late April. View snow clearing progress and historic road opening dates.

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Road Section



Lassen National Park Highway
A 30-mile section of Highway 89 between Highway 36 and Highway 44.

Highway Closed for the Winter Snow Season.

Road clearing operations begin at the Manzanita Lake Area in late-April.

The park highway is closed to through traffic for the snow season (November - May). The road is closed between the Kohm Yah-mah-nee Visitor Center and the Loomis Plaza.

Visitors can still access the Loomis Plaza (one mile inside the Northwest Entrance) and the Kohm Yah-mah-nee Visitor Center (one mile inside the Southwest Entrance).

The highway winds through mountainous terrain and reaches an elevation of 8,500 feet. It is 30 miles in length. RVs and trailers need to be less than 45 feet in total length.

Butte Lake


Road is unpaved/gravel, 6 miles in length and begins off of Hwy 44.

Warner Valley (access to Drakesbad Guest Ranch)

Closed for the Winter Snow Season

Road is not recommended for RVs, trailers, and low clearance vehicles. It is 17 miles in length and begins off of Hwy 36 in Chester. The last 3-mile section is unpaved/dirt.

Juniper Lake

Closed for the Winter Snow Season

Road is not advised for RVs, trailers or vehicles with very low clearance. The road is 13 miles long. It is paved for the first 6 miles north of Chester (Hwy 36), then rough gravel and dirt for the remaining 7 miles.


Roads to the Park

Check conditions for area roads (map of the area) on the CalTrans QuickMap or view current conditions on CalTrans webcams.

Highway 44/89 provides access to the Northwest Entrance/Manzanita Lake Area
Highway 36/89 provides access to the Southwest Entrance / Kohm Yah-mah-nee Visitor Center

Check Chain Requirements Before You Travel

California state law requires all vehicles to carry chains when entering a chain control area. View current chain restrictions on the CalTrans QuickMap. Select Options->Chain Controls and/or other items to view real-time information.


Weather, Webcams & Snow Depths

Snow depths are updated when there is a significant change. Call (530) 595-4480 for the most up-to-date information.


Trail Conditions

View a list of day hiking trails for condition updates, which are generally provided between April and November.

Winter Snow Season Routes

  • Trails are usually snow-covered during the winter snow season, approximately November through April.
  • View winter routes in the Winter Guide for over-the-snow travel with snowshoes or skis.
  • Trails at higher elevation including Lassen Peak and Bumpass are often snow-covered into June or July.
  • Trails at lower elevation (Manzanita Lake, Butte Lake, and Warner Valley Areas) are the first to become snow-free.

Last updated: January 17, 2020

Contact the Park

Mailing Address:

PO Box 100
Mineral, CA 96063


(530) 595-4480

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