Firefighters in Arizona were trying to contain a pair of fast-moving wildfires that destroyed a historic lodge in Grand Canyon National Park, closed a section of the park for the rest of the season and prompted calls for an investigation into federal authorities' wildfire response.

A South Rim mayor is clearing up confusion for tourists who believe the entire Grand Canyon National Park is closed due to wildfires.

The NWS warning was in effect for regions of the Grand Canyon below 4,000 feet elevation. Temperatures were forecast to potentially reach 110 degrees at Phantom Ranch and 102 at Havasupai Gardens.

The Grand Canyon National Park’s North Rim, often described as the park’s quieter, wilder side, is now closed indefinitely following a fast-moving wildfire that has engulfed more than 8,500 acres and destroyed dozens of structures, including one of the park’s most beloved landmarks, the historic Grand Canyon Lodge.

Here's what's open and closed at Grand Canyon North Rim, South Rim and Phantom Ranch in the wake of wildfires that destroyed the North Rim lodge.

The Grand Canyon is vast, covering 1,218,375 acres and 1,904 square miles across Arizona. Here's what to know.