Living near Ft. Knox KY we hunted and fished the reservation when opened, you had to have a pass and obey the rules, there was ordinance from 30 cal. to 155 MM laying every where, and every thing was treated as live, the impact areas were off limits but not all ordinance fell in the impact areas.
Worked around the Ft Indiantown Gap PA area in the 70's, the trails were open to off road vehicles, same thing there, you couldn't go anywhere without finding live ordinance, if a grunt got tired of lugging a full can of linked 30 cal and he'd pitch it in the ditch, found parachute flares that didn't pop hanging in the trees, impact craters that you could tell that didn't go off, shrapnel from air bursts.
If you touched it, it could possibly be the last thing those fingers touched !