The San Gabriel Mountains comprise a mountain range located in northern Los Angeles County and western San Bernardino County, California, United States. The mountain range is part of the Transverse Ranges and lies between the Los Angeles Basin and the Mojave Desert, with Interstate 5 to the west and Interstate 15 to the east. The range lies in, and is surrounded by, the Angeles and San Bernardino National Forests, with the San Andreas Fault as its northern border.
The Angeles National Forest (ANF) of the United States Forest Service is located in the San Gabriel Mountains and Sierra Pelona Mountains, primarily within Los Angeles County in southern California. The ANF manages a majority of the San Gabriel Mountains National Monument.
The San Gabriel River is a mostly-urban waterway flowing 58 miles (93 km) southward through Los Angeles and Orange Counties, California, in the United States. It is the central of three major rivers draining the Greater Los Angeles Area, the others being the Los Angeles River and Santa Ana River. The river's watershed stretches from the rugged San Gabriel Mountains to the heavily-developed San Gabriel Valley and a significant part of the Los Angeles coastal plain, emptying into the Pacific Ocean between the cities of Long Beach and Seal Beach.
Eaton Canyon is a major canyon beginning at the Eaton Saddle near Mount Markham and San Gabriel Peak in the San Gabriel Mountains in the Angeles National Forest, United States. Its drainage flows into the Rio Hondo river and then into the Los Angeles River. It is named after Judge Benjamin S. Eaton, who lived in the Fair Oaks Ranch House in 1865 not far from Eaton Creek.
9,159 wildfires were active in the US state of California during 2009. The fires burned more than 422,147 acres of land from early February through late November, due to Red Flag conditions, destroying hundreds of structures, injuring 134 people, and killing four. The wildfires also caused at least US$134.48 million in damage. Although the fires burned many different regions of California in August, the month was especially notable for several very large fires which burned in Southern California, despite being outside of the normal fire season for that region.
The October 2007 California wildfires, also known as the Fall 2007 California firestorm, were a series of about thirty wildfires that began igniting across Southern California on October 20. At least 1,500 homes were destroyed and approximately 972,147 acres of land was burned from Santa Barbara County to the U.S.–Mexico border, surpassing the October 2003 California wildfires in scope, which were estimated to have burned 800,000 acres (3,200 km2). The wildfires killed a total of 14 people, with nine of them dying directly from the fires; 160 others were injured, including at least 124 firefighters. At their height, the raging fires were visible from space. These fires included the vast majority of the largest and deadliest wildfires of the 2007 California wildfire season. The only wildfire in 2007 that surpassed any of the individual October 2007 fires in size was the Zaca Fire.
Fish Canyon Falls is a tiered waterfall in Los Angeles County, California, located within the Angeles National Forest in the San Gabriel Mountains. The falls are located about 2 miles (3.2 km) northwest of Azusa on the Fish Canyon Creek.
The Sherpa Fire was a wildfire that burned in the Santa Ynez Mountains along the Gaviota Coast in the southwestern part of Santa Barbara County, California in June 2016. In a matter of hours the fire spread to over 1,400 acres (570 ha) as the fire was propelled by downslope sundowner winds. This offshore northerly wind contrasts with the more typical onshore flow and sent the fire down the canyons towards the ocean with gusts of over 35 miles per hour (56 km/h). The wildfire resulted in evacuations at two state beach campgrounds and some residences together with intermittent interruption of traffic on a state transportation route.
The Blue Cut Fire was a wildfire in the Cajon Pass, northeastern San Gabriel Mountains, and Mojave Desert in San Bernardino County, California. The fire, which began on the Blue Cut hiking trail in the San Bernardino National Forest, was first reported on August 16, 2016 at 10:36 a.m., just west of Interstate 15. A red flag warning was in effect in the area of the fire, with temperatures near 100 °F (38 °C) and winds gusting up to 30 miles per hour (48 km/h).
In terms of property damage, 2017 was the most destructive wildfire season on record in California at the time, surpassed by only the 2018 season and the 2020 season, with a total of 9,560 fires burning 1,548,429 acres (6,266.27 km2) of land, according to the California Department of Forestry and Fire Protection, including five of the 20 most destructive wildland-urban interface fires in the state's history. Throughout 2017, the fires destroyed or damaged more than 10,000 structures in the state, a higher tally than the previous nine years combined. State data showed that the large wildfires killed 47 people – 45 civilians and 2 firefighters – almost higher than the previous 10 years combined. The total property damage and total amount of burned land were both surpassed by the 2018 California wildfires.
The Creek Fire was a large wildfire that burned in Kagel Canyon and the Angeles National Forest north of Sylmar, a neighborhood in Los Angeles, California, United States, and one of multiple wildfires that broke out across Southern California in December 2017. The Creek Fire burned 15,619 acres (63 km2) and destroyed 123 structures, including 60 homes, before being contained on January 9, 2018, following heavy rainfall from a winter storm. The fire threatened the communities of Santa Clarita, Glendale, Olive View, Lake View Terrace, Sunland-Tujunga, Shadow Hills, Sylmar, Pacoima, Lopez Canyon, and Kagel Canyon, as well as the Olive View–UCLA Medical Center. During the wildfire, 115,000 residents were forced to evacuate their homes.
The Rye Fire was a wildfire that burned in Santa Clarita, California, in the United States, and one of multiple wildfires that broke out across Southern California in December 2017. The fire threatened over 5,000 structures, including Six Flags Magic Mountain, threatened the city of Santa Clarita and impacted traffic on Interstate 5. The Rye Fire burned a total of 6,049 acres (24.48 km2), before it was fully contained on December 12. The fire destroyed six buildings, including minor structures located at the Peter J. Pitchess Detention Center.
A series of 29 wildfires ignited across Southern California in December 2017. Six of the fires became significant wildfires, and led to widespread evacuations and property losses. The wildfires burned over 307,900 acres (1,246 km2), and caused traffic disruptions, school closures, hazardous air conditions, and power outages; over 230,000 people were forced to evacuate. The largest of the wildfires was the Thomas Fire, which grew to 281,893 acres (1,140.78 km2), and became the largest wildfire in modern California history, until it was surpassed by the Ranch Fire in the Mendocino Complex, in the following year.
The Lilac Fire was a fire that burned in northern San Diego County, California, United States, and the second-costliest one of multiple wildfires that erupted in Southern California in December 2017. The fire was first reported on December 7, 2017, burned 4,100 acres (1,659 ha), and destroyed 157 structures, before it was fully contained on December 16. The fire cost at least $8.9 million, including $5 million in firefighting expenses and property damage, and an additional $3.9 million in cleanup and erosion control costs. The fire threatened the communities of Bonsall, Oceanside, Vista, Fallbrook, and Camp Pendleton. During the fire, an estimated 10,000 residents were forced to evacuate, while a total of over 100,000 residents were forced to or advised to evacuate. On December 7, the Lilac Fire also cut the power to 20,000 people.
The Woolsey Fire was a wildfire that started in Los Angeles County and spread north to neighboring Ventura County, both located in the U.S. state of California. The fire ignited on November 8, 2018 and was not fully contained until November 21, 2018. The fire burned 96,949 acres of land, destroyed 1,643 structures, killed three people, and prompted the evacuation of more than 295,000 people. It was one of several fires in California that ignited on the same day, along with the nearby Hill Fire and the destructive Camp Fire in Northern California.
The Soledad Fire was a wildfire that burned 1,525 acres (617 ha) south of Agua Dulce and northeast of Santa Clarita in Los Angeles County, California in the United States during the 2020 California wildfire season. The fire started on July 5, 2020, and caused the complete closure of State Route 14 in both directions throughout the day as the fire grew to 1,498 acres. The fire also at a point threatened over 4,795 structures, although only 9 homes were formally threatened by the direct fireline. As of 2025, the cause of the fire remains in question.
The Bobcat Fire was a large wildfire in Los Angeles County during the 2020 California wildfire season. The fire ignited on September 6, 2020, and burned 115,997 acres (46,942 ha) before it was fully contained by November 27. The Bobcat Fire primarily burned in the central San Gabriel Mountains, in and around the Angeles National Forest, and is one of the largest fires on record in Los Angeles County to date.
The Kinneloa Fire was a destructive wildfire in Los Angeles County, Southern California in October 1993. The fire destroyed 196 buildings in the communities of Altadena, Kinneloa Mesa, and Sierra Madre in the foothills of the San Gabriel Mountains, becoming at the time the twelfth-most destructive wildfire in California's history and one of the most destructive wildfires in Los Angeles County history. The fire caused a multitude of minor injuries, one direct fatality, and two indirect fatalities.
The Copper Fire was a wildfire in Los Angeles County, Southern California, in June 2002. After igniting on June 5 near the city of Santa Clarita, the fire burned for a week and consumed 23,407 acres, damaging wildlife habitat and historic structures in the Angeles National Forest. It was fully contained on June 12. The fire destroyed more than two dozen buildings and resulted in at least nine firefighter injuries. The federal government later sued two contractors, arguing that their negligence had sparked the fire during construction work. The suit resulted in a jury award in the government's favor of more than $36 million. The award was the first ever in the United States for environmental damages from a wildfire.
The Bridge Fire was a destructive wildfire in the Angeles National Forest in Southern California's Los Angeles and San Bernardino counties. The fire began on September 8 and burned a total of 56,030 acres before being fully contained on November 26, 2024. The cause of the fire is under investigation. It was the third-largest wildfire of California's 2024 fire season. The fire threatened the areas of Wrightwood, Mount Baldy Village and Jackson Lake, where mandatory evacuation orders were in place. The fire affected nearly 100 structures total.
