(KRON) -- A fire is burning multiple acres in Sonoma County on Sunday afternoon, according to Cal Fire's social media account. Firefighters were dispatched to the 6300 block of Briggs Ranch Road in Geyserville at around 1:47 p.m. As of 5 p.m., the fire has burned approximately four acres and is "b urning in heavy fuels," Cal Fire said. Firefighters have gained access to the flames. Cal Fire said the fire is "burning at a slow rate of spread." Latest update on search for missing Oakland coffee shop owner Amy Hillyard: ‘Combing through hours of tapes’ Image: Cal Fire LNU on XImage: Cal Fire LNU on X Image: Cal Fire LNU on X The fire is located about 10 miles northwest of Calistoga. Cal Fire has dubbed this blaze the "Briggs Fire." This story will be updated. ...read more read less