As of July 17, it enters the stage prohibiting campfires, charcoal grills and outdoor smoking throughout the park’s campgrounds and residential areas.

Drought, a warming climate and decades of firefighting policies that suppressed natural fires have turned many grasslands and forests across the West into tinderboxes.

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.