Best landing ever!
Near Paragon. ATV's ride there, has a donation box. No Trespassing signs abound.
Thanks to Barry Welling for the tip!
Pushing the limits: A history of Quaternary proglacial lakes from central Indiana’s Mill Creek Valley
By JOHN ROBERT WOOD B.S., Purdue University, 1999
THESIS Submitted as partial fulfillment of the requirements for the degree of Master of Science in Earth and Environmental Science in the Graduate College of the University of Illinois at Chicago, 2009, Chicago, Illinois
This looks like a reasonable approximation of the glacial Porter Cave siphon:
Porter Cave and Campground
Drunkards Pike Road
39 Dependent sites
0 Independent sites
Sewage Disposal: Unknown
Christian Tabernacle Church
Joseph Kent Jordan
802 South Franklin Road
Indianapolis IN 46219