More than 1000 homes had been destroyed by fire in one area and more than 100 people were still missing.
"There's no power, no gas, the entire town is shut down," said Hollis. "It was hard trying to get in. We stocked up a truck with everything to be able to hand out to survivors.
"We went up with all our gear to help - generator, gas and everything. They reckon it's going to be at least a week before they get power the back on.
The ash and smoking ruins after wildfires ripped through Sonoma, California. Photo / Robett Hollis, Facebook
An intact chimney in a burned-out wasteland after the fires in Sonoma, California. Photo / Robett Hollis, Facebook