The 51,000-acre Bridge Fire that destroyed at least 39 homes in September closed Mt. Baldy hiking trails for eight months.

The 6,000 acre Cotoni Coast Dairies, a swath of mountainous terrain with scenic woodlands, Pacific Ocean vistas and miles of ...

SAN GABRIEL MOUNTAINS, Calif. (KABC) — Nearly two weeks after a Bell Gardens man went missing in the San Gabriel Mountains, the family of 31-year-old Fernando Nieto is holding onto hope that he ...

“Steep gully walls and road cuts remain reactive to human trigger from above and from below,” said Beyer. As of Feb. 17, the San Juan Mountains ... to stick to slopes less than 30 degrees ...

Their steep slopes efficiently funnel storm runoff ... In the case of the San Gabriel Mountains, debris flows are a scenario that’s been explored many times, none so closely as in John McPhee ...

One of many steep, burned slopes of the San Gabriel Mountains behind the Sierra Madre Debris Basin and Dam along Little Santa Anita Creek in Sierra Madre. This area burned in the Eaton Fire. Jan. 29, ...

Casting worried glances at a gray sky above the Sierra Madre Dam in the foothills of the San Gabriel Mountains ... than the San Gabriels. Their steep slopes efficiently funnel storm runoff ...

Communities surrounding the Eaton Fire in Altadena, at the foot of the San Gabriel Mountains ... are enough to propel dangerous slides along steep slopes, as little as a quarter of an inch ...

He and his team spent Wednesday hiking in the steep canyons that flank the San Gabriel and Santa Monica Mountains. When it rains hard enough, the sediment on slopes like these can swiftly tumble ...