It's called the Cabrillo Fire.
Part of highway one south of Pescadero was closed for hours after it started Thursday night.
But the California Highway Patrol has reopened it at Gazos Creek road.
RELATED: 95 acre wildfire in San Mateo County closes part of Hwy 1
No word on damage, but recent video shows downed trees and what appears to be at least one vehicle burning -- possibly a SUV.
The fire has destroyed nearly 100 acres so far.
CAL FIRE says it's 55% contained.