LOCATION United States

River Ridge

(Indiana)

The Indiana Army Ammunition Plant was an Army manufacturing plant built in 1941 between Charlestown and Jeffersonville, Indiana. It consisted of three areas within two separate but attached manufacturing plants:

  • Indiana Ordnance Works Plant 1 (IOW#1): made smokeless powder
  • Indiana Ordnance Works Plant 2 (IOW#2): made rocket propellant
  • Hoosier Ordnance Plant (HOP): manufactured propellant charge bags

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