UPDATE, July 13, 9:30 a.m.: The Pacheco Fire south of Valley Springs in Calaveras County is now 341 acres and is 20 percent contained.
Meanwhile, the Stagecoach Fire south of Copperopolis in Calaveras County is now 35 acres and is 75 percent contained.
UPDATE, July 12, 5:30 p.m.: Two fires are burning in Calaveras County Tuesday afternoon.
Fire departments from the region have responded to the Pacheco Fire with significant resources.
"25 engines, four dozers, eight hand crews, one air attack, four air tankers, three helicopters, three water tenders," says Lindy Shoff with CalFire.
It started at about 1:10 p.m. at Milton and Lanford Pacheco Roads.
The Stagecoach Fire is 20 miles to the southeast on Stagecoach Drive started at about 3:15 p.m.
The blaze is burning among power lines in the area. Shoff says it has burned about 30 acres, but fire crews have stopped it from advancing.
"We have 13 engines, a couple of dozers, and an air tanker," says Shoff.
Hot, windy conditions helped spread the fires
There has been no cause identified for either fire.
ORIGINAL: Crews are battling a 230-acre grass fire in Calaveras County Tuesday.
The blaze was first reported just before 2 p.m. off Lanford Pacheco Road south of Valley Springs.