CONTRA COSTA COUNTY -- A log cabin fire Tuesday near the base of Mount Diablo destroyed the structure and about three acres of surrounding brush before it was brought under control, fire officials said.
The blaze crept to the edge of a road near the entrance of Mount Diablo State Park, said Batallion Chief Mike Picard of the San Ramon Valley Fire Protection District.
"If it had jumped the road, Mount Diablo would have been burning," he said Wednesday morning. "We'd still be there now."
The fire was reported just after 3 p.m. in the 2300 block of Mt. Diablo Scenic Boulevard, and was initially thought to be a tree fire, Picard said.
Three rental cabins were clustered there, and the largest of them was completely destroyed by the flames, Picard said.
Forty firefighters, including support from Cal Fire, fought the blaze for about 90 minutes before it was brought under control at about 4:30 p.m., Picard said.
Firefighters believe the fire started in a cabin that had been vacant, though it wasn't clear Wednesday morning how it was sparked. It was believed to be accidental, he said, but that could change.
"We're going to go back out there today and investigate more," Picard said. "Last night there was just so much foam and water from putting the fire out, it was just a muddy mess."
One firefighter suffered a knee injury, but is expected to recover, Picard said.
The blaze serves as a reminder to Bay Area residents
"For about 100 feet around your home, you should have the vegetation cleared out," he said. "So if your house lights on fire, it won't catch the brush and trees on fire, and if a house near you lights the vegetation around it, your home won't be at risk."
Contact Sean Maher at 925-943-8013. Follow him on Twitter at twitter.com/OneSeanMaher.