Per Marin County Sheriff's Office on Thursday, Janaury 21st, 2021:
There may be smoke in the air for approximately 7 hours. Travelers in the Stinson Beach and Bolinas area may see smoke in the air or experience slowing traffic. This is a controlled burn conducted under a burn permit issued by Marin County Fire Department. Do not call 911 to report.
Read more about it by visiting https://www.marincounty.org/depts/fr