|A town within the crater: Middlesboro, Ky.|
The picture above shows the high wall of the crater. Standing in Middlesboro, this crater wall is a 360-degree panoramic. Until the 1960s and research by the USGS, locals thought the unique topography was caused by tectonic shifting rather than the 1,500 foot in diameter that once struck the area.
The site is one of three known astroblemes in the Commonwealth (the others are in Shelby and Woodford counties). [*]