GRAND CANYON NATIONAL PARK, Ariz. (AP) - Authorities say Grand Canyon National Park has completed ignition operations on a prescribed fire.
Crews will continue to mop up any areas along the fires perimeter that may threaten the holding line.
Because of changing conditions, fire managers have decided to halt any further ignitions.
More than 2.7 square miles (7.1 square kilometers) were treated.
Park officials say crews met the objectives for the prescribed fire, including improving the defensible space in the wildland/urban interface within the South Rim developed area and reducing fuel loads.