Highway closures and evacuations remain in effect as a wildfire burns more than 49,000 acres in Coconino County. It is one of two blazes raging at or near the northern rim of the Grand Canyon.

Officials have closed the North Rim of the Grand Canyon as the White Sage Fire burns near the town of Fredonia. Just 35 miles south, the Bravo Dragon Fire has destroyed structures inside the park.

Nearly 400 firefighters are working around the clock on the Dragon Bravo Fire burning on the North Rim of Grand Canyon National Park, Tuesday.

The visitor center and a wastewater treatment plant were among the 50 to 80 structures lost, the park superintendent said. The area was evacuated Thursday.