In the 70s, my dad used to ride his dirt bike all over the place, and one day he was riding in Fall Creek towards the Barrel Mill when he came across a big guy blocking the trail and brandishing a pole. This guy told my dad, "Turn around, man!" My dad wisely turned around and didn't go back. I don't know exactly where that happened, but this is the trail to the Barrel Mill, so I'm taking a guess that it was somewhere around here.
You're looking for an ammo can hidden just above the trail on the uphill side. Coordinates are difficult here, but there's really only one spot on this section of the trail for a state park-compliant ammo can cache.
Fall Creek hours are sunrise to sunset. Dogs and bicycles are not allowed in Fall Creek. The closest parking is on Felton Empire near GC264G8 (waypoint included) although this parking area can be a little rough. It's a slightly longer walk from the main parking lot. Happy hunting!