Alerts & Conditions





Planning a Summertime Visit?

Please be aware of the following:

  • Road clearing operations began April 4, 2017. Sections of the park highway will open when it is safe and there is sufficient parking for vehicle traffic. The road is expected to open to vehicle traffic July 27th.
  • Roads to Butte Lake, Juniper Lake, and Warner Valley are open to access trails in those areas.
  • Many park trails at high elevations like Kings Creek Falls and Lassen Peak will be covered in snow through late July.
  • The Bumpass Hell Trail is closed to hikers due to snow. It will open when the snow melts out of the area. Devils Kitchen (4 miles round trip) in the Warner Valley is a good alternative hike to Bumpass Hell. Sulphur Works hydrothermal area along the main park highway is also accessible by vehicle.
  • Hiking can necessitate the use of sturdy footwear, trekking poles or more advanced winter equipment such as crampons or ice axes if you wish to ascend peaks.


Status of Roads within the Park

Last update - 7/22/2017

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.)

Partially Open
New! The road is expected to open in its entirety July 27th. Click here for status updates and to view historic opening and closing dates.

The park highway is closed to through traffic. The highway is open between the northwest entrance and Summit Lake (13 miles) and between the southwest entrance and Lassen Peak Parking Area (8 miles). View the road clearing progress map here.

The highway opened to Bumpass Hell parking area from the southwest entrance (6 miles) on 6/30. The trail to the hydrothermal area is closed due to hazardous snow conditions.

Butte Lake

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

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.

Map of road work in the surrounding area

Status of Roads Surrounding the Park

To view the webcam at the Highway 89/44 junction near northwest park entrance click here. Select a highway to view information from the CA Department of Transporation:
32 | 36 | 44 | 89 | 299

Expect Road Work Delays on CA-36 and CA-44
  • CA-36: 10 miles west of CA-89 junction to the southwest entrance
  • CA-36: 4 miles east of CA-89 junction to the southwest entrance
  • CA-44: 2 miles west of northwest entrance


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: 7/20/17

Location Snow Depth
Mineral (5000 feet) No Snow
Manzanita Lake (5800 feet) No Snow
Southwest Entrance (6700 feet) patchy snow
Lassen Peak (8250 feet) ~5 feet

Official Surveys

Statewide Snow Surveys

Lower Lassen Peak (8250 feet)
Survey Date: April 1, 2017

243.5 inches snow
133.5 inches of water content (55% density)
172% percent of April 1st average
Manzanita Lake (5900 feet)
Survey Date: February 29, 2017
27 inches snow
7.5 inches of water content (28% density)
97% percentage 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: July 22, 2017

Contact the Park

Mailing Address:

PO Box 100
Mineral, CA 96063


(530) 595-4480

Contact Us