Located at a nice park and ride area just off the I-94 interstate near Baldwin, WI. Park in the lot and take the short walk to GZ (do not approach from the lot above - it'll increase the terrain and frustration rating quite a bit).
This is a good spot to take a break, have some coffee (other favorite caffeinated beverage) and recharge. Small container, with a bit of room for small trackables and coins.
Have Fun!