You are looking for a 50 cal ammo can.
BE SURE TO WEAR ORANGE during Controlled Deer Bow Hunting Season (mid-September thru December 31st).
Link for the Weir Farm Preserve trail map: Weir-Preserve-Map.jpg (840×1080) (npplan.com)
You can also find a trail map in the photo gallery.
Permission was granted for placement of this cache by Weir Preserve.