In St. Johns, MI, near our rails-to-trails path. I've found all of the other cashe's before and after this box, however, so I know that it is not currently posted. I wasn't geocaching at the time I discovered it, just happened to see an unnatural shape in the woods a little ways off the trail and decided to investigate. The ammo box is pretty rusty on the side it was laying, but the contents were in decent shape. The log book said, "Along the Bluewater Highway", which is referring to M-21, an east-west trunkline highway running from Grand Rapids to Flint, which includes St. Johns. I'm not super savvy with the app, but if there is a way to search for the owner I can go back and check for a name.