#8. Blue Spring (Current River)
Blue Spring fits it's name very well. Discharging an average of 81 million gallons of water a day and being 310ft. deep, the spring has a royal blue appearance. It looks it's prettiest during a drought because the water has time to clear up due to low flowage. It is the second deepest spring in Missouri that we know of and one of the deepest in the United States.