Fire officials reported the Lopez Fire that began on Sept. 21 is now 100 percent contained.
"Los Padres National Forest fire resources continue to monitor the area and snuff out hot spots within the containment area however there is no longer a threat from the fire to adjacent areas," Los Padres National Forest tweeted.
Investigators found a campfire that was not thoroughly extinguished led to the 220-acre fire, according to a CAL FIRE press release.
Authorities said they are looking into who was responsible for leaving a smoldering campfire. A total of 24 homes were evacuated but none were damaged.
More than 700 firefighters worked to extinguish the fire.