Vigo Ordnance Plant, Military manufacturing facility in Terre Haute, Indiana, United States.
The Vigo Ordnance Plant is a former military manufacturing facility in Terre Haute, within Honey Creek Township in Indiana. The site includes several production buildings and storage tanks that were built to support weapons manufacturing and later military research.
The facility opened in 1942 to produce conventional weapons and quickly became an active production site during World War II. In the following decades, its role shifted and it became part of Cold War military research programs.
The plant was part of a national network of facilities conducting secret military research during and after World War II. Today, archival documents and local historical sources keep the memory of the site alive for those who seek it out.
The site is not open to visitors and no on-site tours are available. Those interested in its history can consult archival documents and local historical collections in Terre Haute.
In the 1990s, international inspection teams visited the site as part of verification activities linked to arms control agreements. This made the facility one of the few locations in the United States formally examined by foreign observers for treaty compliance.
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