The Wallow Fire - lagest wildfire in Arizona

A horse runs through a field as smoke from the Wallow Fire billows overhead June 9 near Springerville, Ariz. The Wallow Fire, now the lagest wildfire in Arizona's recorded history, is threatening transmission lines that provide power to hundreds of thousads of people across Arizona, New Mexico and Texas.

A firefighter sleeps at the incident command post June 8 in Springerville, Ariz., as wildfires continue to burn hundreds of thousands of acres in eastern Arizona, prompting evacuations by residents and leaving a trail of smoke looming over the area.