Naval Surface Warfare Center Crane Division, Military research facility in Martin County, Indiana, US
Naval Surface Warfare Center Crane Division is a military research facility in Martin County, Indiana, spanning across three counties. It maintains specialized laboratories and testing facilities for electronic warfare, infrared countermeasures, radar systems, and undersea warfare technologies.
The facility began operations in 1941 as a Naval Ammunition Depot focused on ordnance production, testing, and storage under the Bureau of Ordnance. It later evolved into today's research center, shifting its mission toward electronic warfare and advanced defense technologies.
The center serves as a major employer shaping the economic and social life of the surrounding region with thousands of skilled workers. Its presence has developed a technical community in southern Indiana that remains central to local identity and pride.
The site is very large and spread across multiple counties, so exploring requires planning ahead. Visitors should note that this is a military facility that may have restrictions on public access.
The installation completely surrounds Lake Greenwood, making it one of the few places where a large lake is entirely enclosed by a military facility. This geographic feature makes it an unusual example of how nature and defense infrastructure are integrated into one space.
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