The Alligator Gar is found in Gulf Coast drainages from Mexico to Florida and extending north to Illinois and Ohio. They are found in pools and backwaters of rivers and bayous. The largest freshwater fish of Eastern North America, Alligator Gars reach 12 feet in length! As the common name suggests, they have a short and broad snout similar to an alligator. They are the only gar with two rows of large teeth on their upper jaw.