50th anniversary edition "Fifty years ago, two University of Iowa geology students and relatively new NSS members discovered and explored the most spectacular cave in the Upper Midwest?Coldwater Cave. The full story has never been told until now. Our geological detective work to find the cave, our plunge into the unknown through water-filled passages, and what we found in the undiscovered country 200 feet below the surface of northeastern Iowa are recounted in this book."--NSS website.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.