Skip to main content

Thomas Mountain Rx

Unit Information

San Bernardino National Forest
U.S. Forest Service
602 South Tippecanoe Ave.
San Bernardino, CA 92408

USFS Shield

Incident Contact

Zach Behrens
Phone: 909-382-2788

Advisory: Prescribed burning to begin on Thomas Mountain

Thomas Mountain Rx Prescribed Fire
News – 3/19/2019

Who: San Jacinto Ranger District, San Bernardino National Forest, U.S. Forest Service

What: Fire crews will return to Thomas Mountain for another year of prescribed burning to create community-scale defensible space and promote forest health. Due to the terrain and accessibility of this year’s burn unit, a low-flying helicopter may be used for ignitions in coordination with ground crews. The burn unit is 1,074 acres, but only 30 to 70 percent will be treated in a mosaic pattern to create age diversity among the vegetation.

Crews will only move forward each day when weather conditions are safe for burning. Personnel will remain on site 24 hours/day during operations.

Where: Northeast slope of Thomas Mountain (Garner Valley side)

When: Potentially beginning March 25 and periodically continuing for the next month.

Get Updates: Check online at and follow the forest on Twitter at to receive burn notices (a Twitter account is not required to check the account).

More Information: Please contact the San Jacinto Ranger District at 909-382-2922 or the Prescribed Burn Hotline at 909-382-2711.