RENO, Nev. (AP) — A small, wind-whipped brush fire destroyed a mobile home north of Reno Wednesday while more than 600 firefighters battled three big wildfires in northeast Nevada, including one threatening several ranches near the Idaho line.

The fire that destroyed the mobile home in Cold Springs also destroyed two or three out-buildings and damaged nearby structures before crews stopped forward progress of the flames Wednesday afternoon, the Truckee Meadows Fire Protection District said.

No injuries have been reported but some vehicles also were lost in the fire that broke out shortly about 1:30 p.m. and burned about 1.5 acres (0.6 hectares) east of U.S. Highway 395 and west of Spanish Springs Airport.

Details of the other damage weren't immediately available. The cause of the fire is unknown.

In northeast Nevada, no structures have been damaged but the largest fire 40 miles (64 kilometers) south of Elko has closed roads and is threatening key wildlife habitat in the Ruby Mountains.

That lightning-sparked blaze, dubbed the Corta Fire, has burned 26 square miles (67 sq. kilometers). It's 10% contained. Authorities have closed South Ruby Road and Harrison Pass Road at Huntington Road.

More than 320 personnel are working that fire but full containment isn't expected for a week, fire officials said.

Crews set backfires Tuesday on the fire's northeast flank to help steer the flames away from critical winter habitat for mule deer near Green Mountain. The area is also home to sage grouse and the threatened Lahontan cutthroat trout.

"We were able to get a lot of air and ground resources on the fire yesterday," Incident Commander Tyler Hecht told the Elko Daily Free Press on Wednesday. "Ground crews and aircraft made good progress on all flanks of the fire, but rough terrain is making the progress slow."

The Goose Fire along the Idaho line has burned 13 square miles (34 sq. kilometers) about 25 miles (40 kilometers) east of Jackpot. It's 5% contained with about 130 firefighters on the lines.

The 10-square-mile (25-square-kilometer) Shafter Fire about 25 miles (40 kilometers) west of Wendover and the Utah line is 25% contained. More than 150 firefighters remain on the scene.

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