About three acres burned in Huddart Park on Kings Mountain Road. Smoke could be seen from Interstate 280 in the Redwood City area.
Just after 9:30 a.m., fire officials said forward progress of the fire has been stopped.
Kings Mountain Road is closed at Skyline Boulevard.
The fire department did not have an estimated time for when the street will reopen.
Fire officials said crews will remain at the scene for at least 24 hours "due to extremely heavy ground fuels."
No other injuries were reported and no structures burned.