Alerts & Conditions


Park Closure


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Wintry Conditions at Lassen

Read more for help on planning your winter/spring visit or read the 2017-2018 Winter Guide. For summertime planning read the
2018 Summer Guide.

  • The Lassen National Park Highway (30 miles of Hwy. 89 that go through the park), is closed to traffic due to winter snow accumulation. Sections of road may be open. Plowing operations have begun. Track spring road clearing operations.
  • Check on current highway conditions for travel delays due to snow or construction.
  • Limited trails are available for snowshoe, skiing,or hiking. View the winter edition of Peak Experiences for winter route recommendations. Or, view the Day Hiking page for status of hiking trails.

  • The Kohm Yah-mah-nee Visitor Center (at the southwest entrance of the park) is open from 9 - 5 daily. See all operating hours and seasons.

  • The Southwest Walk-in Campground, is the only open campground and is typically snow-covered through May. Visitors may also camp in vehicles in the parking area adjacent to the campground and are subject to the camping fee. Check out all park campground operating dates.


Status of Roads within the Park

Last update - 5/19/2018

Notice: Refresh your browser (hit F5) to view the most recent information.

Road Section



Lassen National Park Highway
(The portion of Highway 89 traveling 30 miles through the park.)

Closed through the park
(Sections Open)

Snow clearing operations are complete. The highway is expected to open to through traffic on Sunday, 5/27 (dependent on conditions).

The highway through the park is closed due to snow accumulation. The park highway is currently closed at the Sulphur Works Hydrothermal Area, 2 miles from the soutwest park entrance and at the Devastated Area 10 miles inside the northwest entrance.

When open, the park highway winds through mountainous terrain and reaches an elevation of 8,500 ft.

Butte Lake


Road is unpaved/gravel, 6 miles in length and begins off of Hwy 44.
*Four-wheel-drive vehicles may be required due to snow on the road

Warner Valley (access to Drakesbad Guest Ranch)


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


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.


Snow Depths

Snow depths are updated when there is a significant change. Call (530) 595-4480 for the most up-to-date information.
Last updated: 5/18/18

Location Snow Depth
Mineral (5000 feet) 0 inches
Manzanita Lake (5800 feet) 0 inches
Southwest Entrance (6700 feet) patchy
Lassen Peak (8250 feet) ~5 feet

Official Surveys

Statewide Snow Surveys

Lower Lassen Peak (8250 feet)
Survey Date: March 27, 2018

131.5 inches snow
53.5 inches of water content (41% density)
69% of April 1st average

View history since 1930
Manzanita Lake (5900 feet)
Survey Date: April 2, 2018
8.5 inches snow
3 inches of water content (35% density)
39% of April 1st average

Wildland Fire and Air Quality Conditions

Air quality conditions can change rapidly due to weather and other variables. Lassen Volcanic National Park staff may not be aware of these rapid changes. Please be aware of your surroundings and use the following links and phone numbers for more information.

Lassen Volcanic National Park Fire Information
Northern California Highway Information Hotline: 1-800-427-7623
California Department of Forestry and Fire Protection
Air Quality Measurements and Forecasts for Northern California


Last updated: May 19, 2018

Contact the Park

Mailing Address:

PO Box 100
Mineral, CA 96063


(530) 595-4480

Contact Us