#20. Roaring River Spring
Roaring River Spring was recently crowned the deepest spring in the United States. A cave diver set a record for deepest freshwater spring dive after reaching depths of 472ft. The diver was still far from the bottom, meaning this spring could be over 500ft. deep. The spring discharges 20 million gallons of water a day and is stocked with trout. It is owned by the Missouri State Park system and is one of the most visited state parks in Missouri.