North Bay firefighters responded Saturday to a brush fire in a field off Highway 37 near the Petaluma River.
Highway motorists reported seeing smoke and flames in a flurry of 911 calls that started about 3:40 p.m., dispatchers said.
About a quarter-acre of grassland was burning when firefighters arrived. Strong winds swept the smoke away from the roadway.
Novato, Cal Fire, Lakeville, Wilmar, Schell-Vista fire crews responded to the scene and kept the fire from spreading.
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