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Inactive

3-1 Pit

Lassen, CA · Undetermined

This fire is no longer active. It burned 1,055 acres in Lassen before dropping off the national incident feed.

0%Inactive

1,055

Acres Burned

126

Days Burning

Jul 7, 2026

Discovered

3w ago

Last Update

Growth

No growth in the last day, containment at 98%
Aug 5 / 1,055 acresAug 24 / 1,055 acres

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Public Lands Nearby

12 public land units within 75 miles

Thousand Lakes Wilderness

Go

Wilderness / CA

23.9 mi

SW

Lassen National Forest

Check first

National Forest / CA

31.5 mi

S

Caribou Wilderness

Check first

Wilderness / CA

31.9 mi

S

Lassen Volcanic National ParkClosures in effect

Closed

National Park / CA

32.3 mi

S

Lassen Volcanic Wilderness Area

Check first

Wilderness / CA

32.3 mi

S

Modoc National Forest

Go

National Forest / CA

48.1 mi

NE

Modoc National Wildlife Refuge

Go

Wildlife Refuge / CA

52.4 mi

NE

Shasta National Forest

Go

National Forest / CA

53 mi

W

Lava Beds Wilderness Area

Go

Wilderness / CA

57.1 mi

N

Lava Beds National Monument

Go

Monument / CA

57.5 mi

N

Mt. Shasta Wilderness

Go

Wilderness / CA

58.7 mi

NW

Castle Crags Wilderness

Go

Wilderness / CA

60.2 mi

W

Official Park Alerts

Closures and dangers published by the National Park Service

Park Closure / Lassen Volcanic National Park

Lassen National Park Highway Closed to Vehicle Traffic

The park road (Hwy 89), is closed to through travel due to ice and fallen rock. Visitors can enter the park at the northwest entrance and travel 10 miles to the road closure at Devastated Area. Or enter the southwest entrance and travel 1-m...

Situation Updates

Changes read from NIFC interagency perimeter data

3-1 PIT update: 1,055 acres, 98% contained

Perimeter data
Aug 14

Per interagency perimeter data, the 3-1 PIT containment moved from 99% to 98%.

IRWIN

3-1 PIT mapped at 1,055 acres, 99% contained

Perimeter data
Jul 31

Interagency perimeter data shows the 3-1 PIT at 1,055 acres, 99% contained.

IRWIN

3-1 PIT mapped at 1,055 acres, 95% contained

Perimeter data
Jul 15

Interagency perimeter data shows the 3-1 PIT at 1,055 acres, 95% contained.

IRWIN

3-1 PIT mapped at 1,055 acres, 85% contained

Perimeter data
Jul 14

Interagency perimeter data shows the 3-1 PIT at 1,055 acres, 85% contained.

IRWIN

3-1 PIT mapped at 1,055 acres, 75% contained

Perimeter data
Jul 13

Interagency perimeter data shows the 3-1 PIT at 1,055 acres, 75% contained.

IRWIN

3-1 PIT mapped at 1,055 acres, 65% contained

Perimeter data
Jul 12

Interagency perimeter data shows the 3-1 PIT at 1,055 acres, 65% contained.

IRWIN

3-1 PIT update: 1,055 acres, 45% contained

Perimeter data
Jul 11

Per interagency perimeter data, the 3-1 PIT containment moved from 35% to 45%.

IRWIN

3-1 PIT mapped at 1,055 acres, 35% contained

Perimeter data
Jul 10

Interagency perimeter data shows the 3-1 PIT at 1,055 acres, 35% contained.

IRWIN

3-1 PIT mapped at 1,055 acres, 20% contained

Perimeter data
Jul 9

Interagency perimeter data shows the 3-1 PIT at 1,055 acres, 20% contained.

IRWIN

3-1 PIT mapped at 1,055 acres, 5% contained

Perimeter data
Jul 8

Interagency perimeter data shows the 3-1 PIT at 1,055 acres, 5% contained.

IRWIN

3-1 PIT update: 800 acres, 5% contained

Perimeter data
Jul 8

Per interagency perimeter data, the 3-1 PIT grew 230 acres to 800.

IRWIN

3-1 PIT mapped at 570 acres, 5% contained

Perimeter data
Jul 8

Interagency perimeter data shows the 3-1 PIT at 570 acres, 5% contained.

IRWIN

3-1 mapped at 570 acres

Perimeter data
Jul 8

Interagency perimeter data shows the 3-1 at 570 acres.

IRWIN

3-1 mapped at 50 acres

Perimeter data
Jul 7

Interagency perimeter data shows the 3-1 at 50 acres.

IRWIN

Timeline

Jul 7Now

126 days since discovery

Other Fires in California

7 other active fires

California wildfire map: every fire burning in the state and the past year's fires. Planning a trip? California national parks guide.

Data Sources

Fire data from NIFC Wildland Fire Interagency Geospatial Services (WFIGS) via IRWIN. Satellite hotspots from NASA FIRMS VIIRS. Situation updates are either posted by the incident management team on InciWeb or read by us from WFIGS perimeter data, and each one says which. Air quality data from EPA AirNow. Public lands boundaries from USGS PAD-US 4.0.

IRWIN ID: 69dd692f-9d85-4d69-91e9-ab82aeb5aeb5

Important

More Than Just Parks aggregates third-party data from EPA AirNow, NOAA, NASA FIRMS, and NIFC/WFIGS. Readings can be delayed, estimated, incomplete, or wrong, and conditions on the ground change quickly. This tool is for general information only and is not a substitute for official air quality alerts, fire and evacuation orders, land manager closures, or emergency services. Verify with the managing agency and local authorities before making any travel, health, or safety decision. We make no warranty as to accuracy and accept no liability for decisions made using this information. This is not an emergency or evacuation tool. If you are near a fire, follow official evacuation orders and call 911. Terms of Service.