Two stone walls, 30-40 feet at the highest, along a rail bridge. When topping out, you may sometimes have trains roaring by.
The legality of climbing here is a gray area (I've seen Geneva police go by and notice me, they didn't say anything).
Be weary of the rock here, I've had huge chunks fall out. Climb at your own risk!
It would be difficult to rope up, not really any spots for pro and there doesn't seem to be much to set up a TR with.
None of the climbing here is all that hard, 5.5-5.8 range if that. Decent holds are readily available, the angle is pretty modest.
Just south of downtown Geneva on the Fox River trail.