Firefighters hope to contain the Lake Fire Complex burning south of Wellington by Tuesday night.
Assistant Public Information Officer Sarah Tone said firefighters are coming from all over the West to battle the fire, which was first reported on Sunday afternoon, and consists of the Lake and Murphy fires.
One firefighter injured a hand while fighing the blaze. No structures are threatened.
The Lake fire has grown to 247 acres and is burning just west of Highway 338 about 10 miles south of Wellington. The Murphy fire has grown to 57 acres and is burning north of Highway 395 about 10 miles north of Bridgeport.
So far more than 200 people are working on the fires mostly as part of eight hand crews and seven engines. Two helicopters are also aiding in battling the blaze.
The two fires were among 10 set by lightning from Bridgeport to Palomino Valley in Washoe County.
Lightning strikes set two fires on Hot Springs Mountain between Johnson Lane and Carson City on Saturday night. Like most of the other fires, those were put out quickly by local crews.
Smoke from the Lake fire was first spotted at 12:30 p.m. Sunday. The Murphy fire was spotted about three hours later.
Both fires are burning on U.S. Forest Service land.