The eight-acre "Green Fire," burning near a campground at Cuyamaca Rancho State Park, was 100 percent contained by 5 p.m. Sunday, according to Cal Fire.
The fire broke out amid warm, dry and windy conditions.
The blaze began around 1:30 p.m. Saturday near Green Valley Road off Highway 79, near the Green Valley Area Campground. Cuyamaca Rancho State Park is located about 45 miles east of downtown San Diego.
Sunday morning, Cal Fire officials said 8 acres were burning at a moderate rate; no structures were threatened and no evacuations were ordered. The fire was 75 percent contained at that time.
The winds were gusting at speeds of up to 30 mph, so officials braced for the fire to spread. The temperature was in the high-80s in Descanso, where the park is located, when the fire sparked.
Cal Fire and U.S. Forest Service crews are working together to tackle the fire, dubbed the Green Fire. More aircraft were requested as officials moved into extended attack mode.
By 2:50 p.m., Cal Fire officials said the Green Fire was holding at 5 acres. Its rate of spread was slow, but it was burning in heavy fuels, officials said. Soon, officials increased the acreage of the blaze to 6 to 10 acres. By Sunday morning, the fire was holding at 8 acres.
Just before 4:15 p.m. Saturday, Cal Fire officials posted an update on Twitter saying firefighters were making good progress on the Green Fire both by air and ground. Aircraft were continuing to make water drops and Cal Fire crews planned to remain there throughout the night monitoring hot spots and potential flare-ups.
Green Valley is one of two family campgrounds open from April through October at Cuyamaca Rancho State Park, according to the California Department of Parks and Recreation website. Green Valley sits at an elevation of 4,000 feet and features 81 campsites. A creek runs through the campground, making shallow pools often used by campers on hot days.
No other information was available.