A wildfire burning between Muir and Stinson beaches has grown to 50 acres, according to Marin County fire officials.
Highway 1 has been closed between Muir and Stinson beach as fire crews battle the fast-moving blaze from both the air and ground. No structures are currently threatened and no evacuations have been ordered.
The wildfire in Marin County was first reported around 11 a.m. Thursday.