In 1960, it was sold to the Oklahoma Ordnance Works Authority (OOWA), which converted most of the facility to become the mid America Industrial Park.
In July 1941, the War Department decided to build a munitions manufacturing facility between Chouteau and Pryor in Mayes County, Oklahoma.
Site selection criteria included an ample supply of water and hydroelectric power, relatively level ground and an available local work force.
By the end of the war, the complex covered 16,273 acres (6,585 ha) containing 487 buildings, 24 residences, 50 miles (80 km) of railroad track, and four complete water systems.
They were separated from the rest of the complex by fenced perimeters patrolled by U. S. Army military police and manned guard towers.
The Oklahoma Ordnance Works Authority (OOWA), a public trust, was formed in December 1960 to redevelop and administer twelve thousand acres of the complex into the mid America Industrial Park.
The area enclosed by Chouteau, Pryor and Locust Grove, Oklahoma began to be known as the "Golden Triangle," because of its sudden economic boom.