Mountain lion tranquilized in San Dimas neighborhood

A mountain lion was tranquilized and captured by wildlife officials in a San Dimas neighborhood on Friday, August -7, 2026, after the animal was spotted lounging on a sidewalk, prompting a temporary road closure and safety warnings for residents. The incident occurred along Foothill Avenue between San Dimas Avenue and San Dimas Canyon Road.

The Los Angeles County Sheriff's Department responded to the initial report and secured the area, urging residents to stay indoors, avoid the vicinity, and bring pets inside. The California Department of Fish and Wildlife was called to the scene to manage the capture. Officials reported that the mountain lion, a female, appeared to have external injuries. A wildlife official fired a tranquilizer dart around 11 a.m., and the sedated animal was subsequently loaded onto a transport tarp and removed from the neighborhood. The lion was transported to a veterinarian for a more thorough examination of its injuries.

The incident highlights a recurring pattern of urban mountain lion encounters in Southern California foothill communities. San Dimas sits adjacent to the San Dimas Canyon-San Antonio Wash Significant Ecological Area, a designated wildlife...