RENO, Nev. (KOLO) - The Bureau of Land Management says sparks from a truck towing a trailer caused the Cold Springs Fire.
The driver and truck have not yet been identified, according to BLM, which says the truck is a full-size truck, possibly a Ford F-250 or F-350.
The witness, who is a firefighter, says it appeared other drivers were attempting to alert the truck driver to the sparks, which means there were possibly other witnesses. Witnesses are urged to call (775) 885-6117.
Sierra Front Interagency Dispatch Center reports the Cold Springs Fire is 1,523 acres and 100-percent contained.
Roads were reopened Friday and evacuees told it's safe to go back home.
The brush fire northwest of Reno near White Lake and the Nevada/California border broke out the afternoon of July 14, 2017. Flames burned east, and at one point jumped Red Rock Road.
No homes burned.
Crews from Truckee Meadows Fire, Reno Fire and the Bureau of Land Management used crews on land and by air to fight the fire.