There is something to be said for hiking in before sunrise into the largest collection of abandonments in the United States. The photograph below is from Power Plant, Building 401-1 at the Indiana Army Ammunition Plant, then the largest smokeless powder plant in the Industrial Operations Command. INAAP, as it was referred to, consisted of Indiana Ordnance Works 1, Indiana Ordnance Works 2 and Hoosier Ordnance Plant.

The buildings are scheduled for demolition, and work has progressed on some of the outer structures in the Propellant and Explosives Area.