About the Container
You are looking for a magnetic container. It is hidden completely out of sight. Please bring your own pen.
About the Location
This location is just a few steps off the Oak Leaf Trail. It was hidden in the trees when I first created this cache but the trees have been cut back since then so now the location is more open. There may be people passing by on the trail depending on when you're there.
Parking
There is a free public parking lot nearby on Estabrook Drive. A path at the south end of the lot leads to the Oak Leaf Trail.
About the Derailer
This part of the Oak Leaf Trail was built on the old Chicago and North Western rail line. Look at the apparatus that's built into the tracks. It looks like a switch but it's not. There is no second set of tracks to switch onto. What we have here is a derailer. If you need to guarantee that a train won't go farther than a certain point, the derailer will intentionally put the train off its tracks rather than let it go on.
Permission
Permission to place this cache has been granted by the Milwaukee County Parks Department. Permit No. 495.