Residents of five homes near Edgemont have been told they might have to evacuate because of a forest fire.
The White Draw Fire started Friday afternoon when a recreational vehicle with mechanical trouble pulled to the side of the road and ignited some dry grass. Authorities say the fire quickly spread to more than 100 acres.
Firefighters from state, federal and local agencies are working to suppress the fire. Four helicopters and a single engine air tanker also are battling the blaze.
Authorities have warned drivers to be cautious on U.S. Highway 18 because of smoke in the area.
Meanwhile, authorities reported that the Dakota Fire southwest of Rapid City has been 100 percent contained after burning 348 acres. Crews continued to mop up and monitor the area Saturday.