Pueblo Chemical Depot, Colorado

Originally established as an ammunition and materiel storage center during WWII, Pueblo Chemical Depot is comprised of 22,654 acres of rolling prairie, with warehouses, munition igloos, and maintenance facilities. In the 1990s, most Army activities were transferred to several other army depots including Tooele Depot in Utah and Red River Depot in Texas. In 2015, it was one of two remaining U.S. Army facilities which store chemical weapons; in this case around 2,600 tons of mustard agent, distributed among 780,000 munitions. Destruction of the stockpile began in 2015. In 1994, the Pueblo Depot Activity Development Authority (PDADA) was created by the Colorado legislature in order to oversee the redevelopment of the site, subsequently rebranded as "PuebloPlex."