Rail Station Ledge

This ledge (not certain if natural or man made, since close-up inspection is not convenient -- the whole area is fenced and posted no parking, no trespassing) is almost certainly sufficient to cause some whitewater action (or concern) at boatable flows. That is, unless the flows in the Rock River (not far downstream) are sufficiently high as to 'back-up' this far upstream and thus swallow up this ledge. Since this is such a uniform pour-over, it seems likely that it could (at times) have quite a 'roller' at its base which could either make for play or panic (danger).