Rumsey Fire, Colusa County, California – The Rumsey Fire grew rapidly after starting near Sand Creek Road on July 20, 2026, spreading through dry vegetation near the Colusa-Yolo county line.
The fire was mapped at 119.65 acres and was making a strong run to the southeast at Sand Creek Road. Video shows flames racing across a dry, oak-covered hillside as a large column of dark brown and orange smoke rises above the fire.
As the blaze expanded, the air attack included nine air tankers and four helicopters. Ground and air resources continued working against the fire as it pushed through rugged canyon terrain.
By 8:15 p.m. on July 20, the fire had grown to approximately 450 acres and was 10% contained. Firefighters began making progress through a coordinated air and ground attack.
Air tankers dropped heavy retardant lines at the head of the fire and the right flank where it crossed Sand Creek Road. Four dozers worked to connect control lines from those retardant drops, while helicopters focused water drops on the western flank.
Humidity at the scene increased from 27.8 percent to 33.1 percent over two hours as winds remained light but swirling. The fire had made runs to the northeast, east, and southeast.