The Forsyth Fire, burning near Pine Valley in Washington County, grew another 775 acres, according to a July 11 update from the U.S. Forest Service. The spread occurred on the southern edge of the fire, where crews are focusing aircraft and ground efforts. Smoke also increased over the last 24 hours as winds pushed the fire into unburned fuel.

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.

A fast-moving wildfire destroyed a historic lodge and dozens of other structures on the Grand Canyon’s North Rim, forcing officials to close access to that area for the season

Two wildfires burning near the Grand Canyon have scorched more than 45,000 acres of tinder dry brush and vegetation and prompted evacuation orders for the Kaibab National Forest and north to the Utah border.