The Trevlac Bluffs Nature Preserve is divided in half by Beanblossom Creek, and each part has its own hiking trail. 
There is no connection, because one side of the creek consists of a very steep and (for Indiana) pretty tall cliff. Most people will probably prefer the well maintained southern part where you get a decent hike with neat little sights like the shed up above, or the pond below.
On top, you get a view of the creek, always obstructed, even in winter.
I found the other side much more exciting. It is mostly wetland, and the trail is rather a maze of paths.
You meander around and inhale the intoxicating atmosphere of water at work.
After heavy rainfall, finding a path to the creek is not trivial, but well worth the effort.
Just don’t do it on a sunny day.
The Inner Frame 