Archaeologists in South Carolina have uncovered the remnants of a 1920s-era moonshine still that may have been run by one of Al Capone’s criminal associates.

While digging in a wooded region known as “Hell Hole Swamp” (part of South Carolina’s Francis Marion National Forest) outside Charlottesville, the researchers discovered a metal barrel, a green garden hose, cinder blocks and various pieces of scrap metal, according to South Carolina’s Post and Courier.