![](http://www.alamy.com/thumbs/6/D640B04D-CF32-46AE-8222-CD3226314831/2G8K43H.jpg)
Twin Caves entry, Spring Mill State Park, Indiana
Size: 3840px × 5760px
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