INTO THE DEEP

Roaring River State Park is beloved for its trout fishing but named for its preternaturally turquoise spring, which flows from the base of a towering, U-shaped bluff. At the viewing platform, its shadowy mouth is hauntingly beautiful, dappled with light and the shadows from hanging ferns. On average, the spring produces an unfathomable 20.4 million gallons of water per day.


February 4, 1893

Marble Cave gets national exposure on the cover of Scientific American magazine. Now called Marvel Cave, Missouri’s deepest known cave has a grand cavern so large that promoters inflated hot air balloons inside to showcase the size of the natural wonder.