A black Land Rover that plunged a couple hundred yards off South Gate Road and landed in a ravine.
"When we got on scene, we found the victim of the crash probably about 70 yards up from the car," said San Ramon Valley Fire Batt. Chief Mike Picard. "She had been thrown clear of the car and she was pronounced dead on arrival."
Hours later, there was a second crash just a mile or two from the first.
"Apparently somebody lost control, went off the road, it was a steep embankment about 60 feet down and ran into a tree," said Picard.
That driver survived and called 911. Both crashes were in an area the chief says isn't typically that dangerous because the speed limit is only about 20 miles per hour. So was weather the reason for the crashes?
"The first one was... we got the call just before noon and it was pretty clear other than raining. The second call, as I was driving up it was pretty foggy and overcast, but that blew away otherwise the helicopter wouldn't have been able to land there," said Picard.
The helicopter flew the second driver to John Muir Hospital to be checked out. As for the woman who died, the CHP isn't releasing her name and they work to notify her family.