The building was surrounded by vegetation on fire when a team of “helitack” firefighters arrived to protect the area on Tuesday. Grand Canyon National Park officials said the crews knew if the pump house fell, the consequences could cripple park operations for months.

Over 1,000 people have been assigned to fight the Dragon Bravo Fire burning near the Grand Canyon and the White Sage Fire burning farther north.

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