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Unit Information

Angeles National Forest
U.S. Forest Service
701 N. Santa Anita Ave.
Arcadia, CA 91006

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Incident Contacts

Public Information
Phone: 626-574-5208
Hours: 8 am - 8 pm daily

Media Information
Phone: 626-671-2065
Hours: 8 am - 8 pm daily

Highlighted Activity

09/26/2020 Bobcat Fire Status of Evacutions/Warnings 400 PM Sept 26
 The hard work and efforts of the multi-agency firefighting crews, and cooperating partners resulted in lifting some Evacuation Warnings in the Littlerock area of the Antelope Valley. Crews are...
News - 09/26/2020
Bobcat Fire Public Information Map 9/29/20Image options: [ Full Size ]

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Updated Weather Conditions: 

For Updated Air Quality Information

          South Coast Air Quality Management District:

          Mojave Desert Air Quality Management District:

Location of Origin: Angeles National Forest, Azusa, CA
Start date: September 6, 2020
Size: Approximately 114,202 acres
Percent Contained: 62%
Cause: Under Investigation
Resources Assigned: 1,363 personnel

Engines: 119

Handcrews: 23

Helicopters: 14

Dozers: 13 

Water tenders: 13


Today firefighters will continue to strengthen containment lines.  On the northwestern portion of the fire crews are working from Highway 2 to Little Rock Reservoir constructing handline and mopping up. Patrols will occur along the northern portion of the fire to make sure communities are secure and will be alert for new activity.  Heavy mop-up will continue northwest of Mount Wilson from Mt. Wilson Red Box Rd to Highway 2. The southern perimeter of the fire remains moderated and in patrol and mop-up status from Mt. Wilson around to Crystal Lake. California Incident Management Team 11 has taken over management of the fire.   


There was minimal fire activity last night. Fire crews focused on strengthening containments lines, monitoring areas for spot fires, and looking for opportunities to attack the fire directly. Heavy mop-up occurred in the Mount Wilson area from Mt. Wilson Red Box Rd to Highway 2. On the north end near Mount Waterman, mop up and patrol activities continued. Crews continued to monitor, patrol, and clean up the Pinon Ridge area to secure containment lines. Firefighters monitored fire activity near the Manzanita Trail and found opportunities to fight the fire directly with the assistance of aviation assets. For the past few days, fire activity on the eastern side of the fire has moderated on the northern portion of the Highway 39 corridor to the San Gabriel Reservoir.


A large area of high pressure will expand over the west and bring an extended period of hot and dry conditions. Above average temperatures and single digit humidity are expected over the next four days. A Heat Advisory has been issued from 10am Tuesday until 8pm Thursday over the Bobcat Fire.


No repopulation or lifting of any warnings occurred today.  All orders remain the same.

• Paradise Springs – South of Big Pines Highway, east of Devil’s Punchbowl, west of Largo Vista Road, and north of the forest.
• South and west of Upper Big Tujunga Canyon, east of Angeles Forest Highway, and north of Angeles Crest Highway.
• Residences along Angeles Crest Highway, between Angeles Forest Highway and Highway 39.

• South of Big Pines Highway, east of Largo Vista Road, west of 263rd Street E (County line), and north of the forest.
• South of Mount Emma Road, north of Upper Big Tujunga Canyon, east of Angeles Forest Highway, and west of Pacifico Mountain.
• East Fork Areas: Julius Klein Conservation Camp 19, Camp Williams, and the River Community.


The Red Cross Evacuation Centers at Palmdale High School and Santa Anita Park are now closed. Anyone still needing assistance can call the Disaster Distress Hotline at 800-675-5799.

The Bobcat Fire started on September 6th at 12:21 PM. The fire is located near the Cogswell Dam and West Fork Day Use area. The fire is burning in heavy fuels with a rapid rate of spread.

Basic Information

Current as of
Incident TypeWildfire
CauseUnder Investigation
Date of OriginSunday September 06th, 2020 approx. 12:21 PM
LocationWest Fork of San Gabriel Canyon at Cogswell Dam
Incident CommanderAngeles National Forest
Incident DescriptionWildfire
Coordinates34.241 latitude, -117.868 longitude

Current Situation

Total Personnel992
Size114,202 Acres
Percent of Perimeter Contained62%
Estimated Containment DateFriday October 30th, 2020 approx. 12:00 PM
Fuels Involved

Chaparral, Brush, and Tall Grass

Significant Events

Mainly smoldering and creeping where heat exists within containment lines, should stay nearly within

existing footprint. The exception is an interior island to the northeast of Mt. Wilson. This will continue to consume fuels.


Planned Actions

Continue direct and indirect line construction with resources available utilizing pre existing dozer lines when possible. Provide structure protection when fire impacts communities.

Projected Incident Activity

Minimal fire growth, due mostly to the interior island near Mt. Wilson (Div A)continuing to consume.


Damage Inspection Teams are assessing Juniper Hills and Valyermo areas. Plans in progress to continue demobilization to add to critically low state resources.

Current Weather

Weather Concerns

Strong high pressure anchored over the west will maintain hot and dry conditions over the region with much above normal

temperatures at least through Friday. Temperatures will peak near 100 degrees over the lower elevations of the fire tomorrow and

Thursday before a slight cooling trend begins over the weekend. Humidity in the low teens with poor overnight R/H recovery will

continue for the next several days. A mostly light diurnal wind pattern will prevail at the lower elevations of the fire with light north-northeasterly winds over the upper elevations for the next

few days. A Heat Advisory has been extended through 8pm Friday for the San Gabriel Mountains and surrounding areas.