Documenting the 1781 Kosciuszko Mine

 

In 2013, the park entered a cooperative agreement with the University of South Florida (USF), the Alliance for Integrated Spatial Technologies (AIST). AIST will provide baseline data and produce 3D digital records of the Kosciuszko Mine and other historic features at Ninety Six National Historic Site.

This project will help the National Park Service / Ninety Six National Historic Site stabilize, protect, and preserve the Kosciuszko mine, the only existing military tunnel during the American Revolution. The 125-foot tunnel is 3-4 feet in height and was dug in the subsurface soil by Patriot soldiers from the American lines toward the British (Loyalist)-held Star Fort during the course of the 1781 siege of Ninety Six.

The project will be a joint undertaking between AIST and the Southeast Archeological Center (SEAC) to document the tunnel and ultimately inspect the stability and recommend long-term protections and preservation methods. Additionally, South Carolina ETV will be documenting the work and developing short documentaries and educational materials.

On this page, you will find additional information on documenting the Kosciuszko Mine. We have provided 3D visualizations, news articles and clips, as well as video clips. We'll be updating the page as we receive new data and information.

To see more photos of the project, head over to the Photo Gallery.

Learn more about our partners here – SEAC, USF - AIST,and South Carolina ETV or check them out on Facebook!

 
A drawing of a tunnel going up to a fort
Artist's rendition of the mine dug by American soldiers towards the Star Fort.

NPS/Steven Patricia

The Mapping of Kosciuszko’s Tunnel

South Carolina Educational Television (SCETV) produced a 26 min video about the mapping of the tunnel.

Watch Now! (26m 48s).

 

Last updated: September 4, 2025

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Ninety Six National Historic Site
1103 Hwy 248

Ninety Six, SC 29666

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864 543-4068

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