One of the most important localities for flint in eastern North America is Flint Ridge in eastern Ohio. Native Americans discovered this deposit and produced flint from hundreds of small quarries along the ridge. This “Ohio Flint” occurred in distinctive colors and was treasured by Native Americans.

They travelled hundreds of miles to collect it and spread the distinctive material in trade across eastern North America. It has been found as artifacts as far south as the Gulf of Mexico and as far west as the Rocky Mountains.