Alerts & Conditions


Learn and Explore

Open with Limited Spring Access

Lassen Volcanic National Park is OPEN but snow-covered. Learn more about visiting in spring or view photos of Spring 2021.

  • Highway is closed to through traffic. View the Spring Road Clearing webpage to learn more. In years with similar snow depth, the highway opened to through traffic in late May or June. 
  • Vehicle access is limited to 10 miles from the northwest entrance and 2 miles from the southwest entrance.
  • Activities mostly involve snow and special safety considerations. Most hiking trails and roads are still snow-covered. We do not plow or shovel hiking trails, so if you want to hike, be prepared to hike over snow.
  • Services and facilities are limited. There are no services open yet in Manzanita Lake. The Kohm Yah-mah-nee Visitor Center is currently open seven days a week. A mask is required for entering the visitor center.
  • The entrance fees are is $30. Passholders do not need to pay the entrance fee.


Quick Conditions

Getting Around

  • Highway closed to through vehicle traffic; remote area roads closed. View status of park roads and/or spring road clearing operations.
  • Parking may fill-up at Kohm Yah-mah-nee Visitor Center and Manzanita Lake/Loomis Plaza on weekends and holidays. Consider arriving earlier in the day to secure a parking spot.
  • Fill up your gas tank before entering the park (see nearby areas with gas stations); there are no fuel stations open in the park.


  • Visitors can hike and bike sections of the park highway that are cleared of snow before they open to vehicles.
  • Oversnow travel is required to travel on most hiking trails. View the new oversnow route conditions webpage. Bring your own equipment to snowshoe or ski/snowboard.
  • Many hiking trails are snow-covered. Some hiking trails in the northwest/Manzanita Lake and Butte Lake areas are currently snow-free. All other hiking trails are covered with winter snowpack, making wayfinding and travel difficult.
  • Camping is available at the Southwest Campground. This campground is still partially covered with snow, so be prepared to camp over the snow. Camping is also available in the backcountry with a free backpacking permit.
  • Manzanita Lake Campground: A-Loop is open on a first-come, first-served basis until May 21. There is no water at the campground and no services available in the Manzanita Lake area. The entire campground is scheduled to open May 21, 2021 and at that time all campsites are available by reservation.


Play it Safe

  • Rockfall is common in the spring due to freeze/thaw cycles. Use caution when walking or biclcling the park road.
  • This year's lower-than-average snowpack may increase hazards such as hidden creek crossings and rockfall.

AnchorWeather, Webcams & Snow Depths

Snow depths are updated when there is a significant change. Learn more about Lassen's snowpack and snowpack surveys.
There are no regular patrols into the interior of the park in the winter. Due to this, we do not have current snow conditions on routes beyond the Loomis Plaza or Kohm Yah-mah-nee Visitor Center.

Weather Forecast


Approximate Snow Depth
Last Updated: 5/5/2021

Manzanita Lake (5900 feet)

Offline indefinitely due to lightning damage. There is no estimate on when this will be repaired or restored.

Manzanita Lake area trails are mostly snow-free with patches of snow present. Check current trail/route conditions. The park highway is open to hiking and bicycling, and is snow-free.

Manzanita Lake is ice-free and the boat launch is snow-free. Manzanita Lake Campground Loop A is open for dry camping. The campground is plowed, with lingering patches of snow in the sites. There is some tree debris in sites.

Southwest Entrance (6700 feet)

Facing north from back of Kohm Yah-mah-nee Visitor Center

Snow depth is patchy at the 6700 foot elevation, with some patches up to 2 feet deep on the ground. Area trails are still covered with snow.

All hiking trails in the southwest area are still under snow. Check current trail/route conditions. The park highway is open to hiking and bicycling, and is snow-free.

Lassen Peak (8250 feet)

Daily Sensor Measurements
Monthly Manual Measurements (Jan - Apr)

Northern California Area

View area webcams

Official Snow Surveys

Lower Lassen Peak

Manzanita Lake

Date: 3/25/2021
Depth: 114.5 inches
Water Content: 43 inches
Density: 38%

Date: 2/28/2021
Depth: 18 inches
Water Content: 6 inches
Density: 33%


AnchorAnchorStatus of Roads in the Park

Lassen Volcanic National Park Highway and other park roads are closed for the winter snow season, typically November through May.

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

Road Section



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

Closed to through Traffic
for traffic preparation.
Open between Loomis Plaza and Devastated Area (10 miles).
Open between southwest boundary to Sulphur Works (2 miles).

The entire road will likely be open to vehicles before the Memorial Day weekend.

The park highway is closed to vehicles between Sulphur Works and Devastated Area (18 miles). The highway is open to vehicles between Loomis Plaza and Devastated Area (10 miles) and between the southwest boundary and Sulphur Works (2 miles).

The Manzanita Lake Campground Road is open to the boat launch/picnic area and campground. There is no snow at the boat launch.

Snow clearing operations are in progress. Sections of the highway open to non-vehicular use and then vehicular use as conditions allow. View road clearing progress. Road portions that are plowed & cleared are open to hiking and biking.

Butte Lake

High clearance vehicles are advised. Some snow is present on the road.
*Butte Lake Campground is still closed.

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

Warner Valley (access to Drakesbad Guest Ranch)

due to winter snow accumulation.

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

due to winter snow accumulation.

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 Highway Conditions lookup page; or view current conditions on CalTrans webcams. The park does not determine chain control restrictions - this is determined by CalTrans. Please go to the CalTrans website for area chain control information.

State Route (SR) 44/89 provides access to the Northwest Entrance/Manzanita Lake Area
State Route (SR) 36/89 provides access to the Southwest Entrance / Kohm Yah-mah-nee Visitor Center


COVID-19 Response

The National Park Service (NPS) is working service-wide with federal, state, and local public health authorities to closely monitor the COVID-19 pandemic.

While areas are accessible for visitors to enjoy, services may be limited. When recreating, please follow local area health orders (CA Covid-19 Response) and recreate responsibly by keeping social distance, wearing a face covering inside all federal buildings, avoiding high risk activities, and staying home if you feel sick. The CDC has offered guidance to help people recreating in parks and open spaces prevent the spread of infectious diseases. We will continue to monitor all park functions to ensure that visitors adhere to CDC guidance for mitigating risks associated with the transmission of COVID-19 and take any additional steps necessary to protect public health.

Kohm Yah-mah-nee Visitor Center is OPEN with Modifications:

  • Auditorium is closed; the park film is temporarily available online.
  • A ranger is available inside the visitor center. The Lassen Association bookstore is open. A mask is required while inside the visitor center. Please maintain a 6-foot distance when inside the visitor center or while outside in populated areas.
  • The Lassen Cafe is open with limited food services on Saturdays and Sundays only. A vending machine is available on other days. There is no indoor dining; food is for to-go only.
  • We request that visitors do not gather for long periods of time inside the visitor center.

Last updated: May 6, 2021

Contact the Park

Mailing Address:

PO Box 100
Mineral, CA 96063


(530) 595-4480

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