Same here Hacksaw.  Mostly junk, A LOT of string/cord/rope but worst of all is beer bottles and tin cans.  The worst trail I was ever on was a snowmobiling/ski trail and there was more garbage on it than I could carry out in a month of Sundays!  Even the warm-up ski shacks were full of garbage!
I did find a cheap Canadian Tire multi-tool though - it had almost no rust on it so I assumed it was a fresh loss and took it home, gave it to the nephew.  It was still in good shape but I didn't need it.