![](http://www.alamy.com/thumbs/6/032E5AC2-38D0-499A-AC99-77A58DFF81B0/2G8K42W.jpg)
Twin Caves entry, Spring Mill State Park, Indiana
Size: 5760px × 3840px
Location: Spring Mill State Park, Indiana
Photo credit: © George Ostertag / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: cavern, caves, entry, forest, indiana, karst, limestone, mill, mitchell, ostertag, park, plain, spring, state, states, twin, united, woods