COCONINO COUNTY, Ariz. — The Rock Canyon Fire burning along the Utah-Arizona border has grown to over 4,512 acres and is just 5 percent contained as of Thursday.
The wildfire is now burning south of US 89, with heavy winds blowing it to House Rock Valley Road in Coconino County, Arizona.
According to fire officials, the fire was lightning-caused.
According to officials, the fire activity is concentrated on its east and southeast sides.
"Firefighters are primarily focused on stopping the fire from spreading further north and strengthening containment along the western and southern edges," officials said. "Bulldozers are currently being used to build a containment line around the fire perimeter."
Fire closures are in effect on land operated by the Bureau of Land Management and the Kaibab National Forest.
