Jeptha Knob, Kentucky
Jeptha Knob is in Shelby county, about four miles east of Shelbyville. It is an astrobleme, the remnant of an ancient meteorite impact crater, now greatly eroded. It consists of a three mile wide group of hills that were created by the rebound of the earth's crust after the impact. It is estimated to be about 425 million years old. The highest point on Jeptha Knob, 1,188 feet, is the highest point in the county.