A wildfire that tore through a historic Grand Canyon Lodge​ had been allowed to burn for days before erupting over the weekend, raising questions about federal officials' decision not to aggressively attack it right away.

Partial blue skies in the morning allowed many park visitors to ignore fires on the North Rim. By afternoon, ashfall made for a different story.

What does one do when a carefully planned fire turns into an inferno that redefines a fabled landscape? That’s the dilemma facing the North Rim of the Grand Canyon after the Dragon Bravo Fire, which began as a controlled burn but turned into a raging force,

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, the park said Sunday.

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.

ABC News' Faith Aubrey reports on the scene at the Grand Canyon with the latest on the containment and conditions from the wildfires.

Winds are expected to pick up through the week as the White Sage Fire and Dragon Bravo Fire burn in northern Arizona. Ian has the firefighting forecast.

Wildfires can burn and spread differently depending on what vegetation they burn. The two fires in northern Arizona have varied landscapes. Ponderosa pine trees grow near the North Rim of the Grand Canyon and can live for hundreds of years.