Firefighters were dousing the smoldering remnants of the wildfire above Rancho Cucamonga on Saturday, with the blaze more than two-thirds contained.
All evacuations were canceled as improved weather conditions enabled more than 800 firefighters to bring the 2,190-acre Etiwanda blaze under control with five water-dropping helicopters and a line around the burn, according to the U.S. Forest Service.
But the North Etiwanda Preserve remained closed to keep hikers and others out of the area as firefighters sought to complete their containment of the blaze.
The fire broke out Wednesday morning. Fueled by grass, chaparral and Santa Ana winds, it raced across the rugged foothills of the San Gabriels just north of Rancho Cucamonga. Three firefighters suffered minor injuries.
Light winds from the west were forecast for Saturday night, with gusts as high as 20 mph.