"The fire at Black Mountain in Nicasio is up to 25 acres and more engines are on the way. "It's moving at a moderate to rapid rate of speed and has the potential of 30 to 40 acres." -- #MarinCounty Fire Deputy Chief Mark Brown, on the fire near Nicasio." A fire helicopter couldn't come from SF due to fog. Bulldozers are being scrambled to build breaks. Flames started at the road and have shot up to the top of the mountain.