Do not go to the posted coordinates, unless you want to find yourself in the middle of the Ohio River and the cache isn't even there! To find the actual coordinates for this cache, you must complete the Adventure Lab - Audubon Mill Park
If you've never done one before, all you have to do is download the Adventure Lab app to your phone and click the link below! It's that simple not to mention it opens up a whole new dimension to caching!
Then click on this link to access this particular set of caches: Audubon Mill
This Adventure Lab will take you on a tour of the information and signs here in the park and at one of those stages, you will be awarded the coordinates for this cache. Not to mention you will get 5 Lab Caches added to your cache find totals! Enjoy your tour!