During the first couple of weeks, the wildfire gradually expanded to 22,926 acres (9,278 ha). However, during the following 4 weeks, the wildfire quickly spread to 130,496 acres (52,810 ha) by September 19, making the Happy Camp Complex the largest wildfire of the 2014 California wildfire season. The wildfire also ignited smaller spot fires to the northwest of the main fire, all the way up to a couple miles of the California-Oregon border. By September 21, the fire complex had reached 80% containment. On September 22, the Happy Camp Complex expanded to 131,996 acres (53,417 ha), but the containment remained at 85%. During the next 2 weeks, the Happy Camp Complex gradually increased in size, reaching 135,369 acres (54,782 ha) on September 27; however, the containment of the fire complex also reached 97% on the same day.[1] On October 31, the Happy Camp Complex was finally extinguished by precipitation from a winter storm that was moving through California.