Army firefighters declared 100 percent containment Monday of a stubborn brush fire that started Oct. 15 as a result of ordnance detonation on a Schofield Barracks training range, officials said.

The fire burned an estimated 450 acres.

The Army said no threatened or endangered species have been impacted, but natural resource personnel are continuing monitoring efforts.

Firefighters continue to control the perimeter and extinguish interior hotspots with helicopter operations, but the fire has not spread in the past three days, the Army said.

Army Black Hawk and Chinook, Marine Corps CH-53 Super Stallion and contracted helicopters were used with water buckets to fight the fire in ravines and hillside terrain.

Army assets assisting in today’s aerial efforts included two UH-60 Black Hawks and two Army-contracted helicopters.

The burn area is located on Army and Dole property in an area inaccessible to fire fighters on the ground due to safety and the terrain.

The brushfire started to enlarge Oct. 22 due to a flare-up of the fire from the previous week, the Army said.