Karst Features of Paleozoic karst aquifers of the Midwest
Choose a feature on the left to read about it and see photos:
Disappearing Streams
Disappearing stream, in Kentucky. USGS Hydrologist Chuck Taylor stands next to a stream that enters the subsurface through a cave entrance.
(Photo by Chuck Taylor)
Springs
A "blue-hole" spring, Orangeville Rise, Indiana. Sixty feet in diameter. (Photo by Chuck Taylor)
Caves
Underground stream in Mammoth Cave Nat. Park. USGS scientists observe a stream located at the base of the explorable cave system.
(Photo by Dan Doctor)
Waterfall in Mammoth Cave Nat. Park. Recent rainfall has activated a large waterfall in the so-called
Mammoth Dome, cascading water down on the path used by
visistors through the cave. (Photo by Dan Doctor)