Federal fire crews and the Reno Fire Department are working a wildland fire in Little Valley, south of Slide Mountain and west of Highway 395.
Cat Liddacoat, assistant center manager for the Sierra Front Interagency Dispatch, said the fire was estimated at three to four acres and is burning in trees.
She said no structures are threatened at this time.
Two seat planes are dropping fire retardant on the flames and a helicopter is on order.
The closest road is Franktown.