The Grand Canyon Lodge was one of dozens of structures destroyed in a fast-moving wildfire in Arizona over the weekend, the National Park Service confirmed.

Firefighters in Arizona were tackling two out-of-control wildfires in extreme heat on Tuesday — including one at the Grand Canyon National Park's North Rim that's forced evacuations, road closures and razed a historic lodge and other structures.

Here's what we know about the two wildfires that have destroyed tens of thousands of acres of forest and burned at least 70 structures.

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 Grand Canyon water treatment facility located at the North Rim caught fire on Saturday, causing chlorine gas to be released into the air. Multiple closures are being enforced due to the incident.

PHOENIX — Residents on the North Rim of the Grand Canyon have been ordered to evacuate due to a fire in Grand Canyon National Park. The fire, named the Dragon Bravo Fire, is approximately 150 acres and was caused by lightning on July 4, officials with the National Park Service said.