Flint Ridge is a nearly eight-mile long vein of high-quality flint located in Licking and Muskingum counties of eastern Ohio. Hundreds of quarry pits and workshop sites are scattered across more than 2,000 acres of ridge top in these Appalachian foothills. It has been called the “Great Indian Quarry of Ohio.”

The prehistoric flint mines range in size from 12 to 80 feet in diameter and from three to 20 feet in depth.
Dr Lepper and Letterman