The 19 km long Cumberland Gap consists of four geologic features: the Yellow Creek valley, the natural gap in the Cumberland Mountain ridge, the eroded gap in the Pine Mountain, and Middlesboro crater. Without Middlesboro crater, it would have been difficult for packhorses to navigate this gap and improbable that wagon roads would have been constructed at an early date. Middlesboro is the only place in the world where coal is mined inside an impact crater. Special mining techniques must be used in the complicated strata of this crater. Read more
The eastern Kentucky town of Middlesboro, as planetary scientists now tell us, is a geological 4-mile wide crater resulting from an asteroid impact some 200-to-300 million years ago with the impact center on the country club site in the heart of the Appalachian mountain community in the Cumberland Gap where Virginia, Tennessee and Kentucky come together. Read more
Middlesboro is a meteorite crater in Kentucky, United States. It is named after the city of Middlesborough (also spelled Middlesboro), which today occupies much of the crater. It is approximately about 6 km in diameter and the age is estimated to be less than 300 million years (Permian). The crater is exposed to the surface. Read more