388 Mammoth Spring, Arkansas

Mammoth Spring is one of the world’s largest springs with nine million gallons of water flowing hourly. It forms a 10-acre lake and then runs southward as the Spring River, a famous Ozark trout and float stream. Remnants of a mill and hydroelectric plant are part of Mammoth Spring’s history.

[@glenndarilek520]

Do they have a place where the springs come out of the ground? Or is it a lake with underwater springs?

[@RickFidelisReed]

@@glenndarilek520 yes the lake is on top of the Spring.