Mariposa County, CA — Fire crews are on the scene of a grass fire burning on Highway 132 near Horseshoe Bend west of Coulterville.
Authorities say the fire was sparked just before 10:00 this morning by a tire flying off of a trailer on the highway.
The blaze is burning in an area of grass and medium brush near Lake McLure just over the Mariposa County line.
Officials say it has grown to 270 acres and is 20% contained. 10 engines from the Tuolumne/Calaveras County CDF have been dispatched to the fire from San Andreas.
Total resources committed to the blaze are 19 engines, four bull dozers, three water tenders and six CDC hand crews. Also dispatched are One CDF air attack, four air tankers and four CDF helicopters.
CDF says there are no structures threatened at this time.
Authorities say fire crews are having to deal with erratic winds in the area, but an advantage is that the blaze is burning in same vicinity where the fuels were previously burned by the Granite Fire five years ago.