I have found some good stuff over the years.
1. Arrowheads & metate's/mano's - lots of these. When I am hunting and find chippings or pot shards animals go free for 30 mins while I look around.
2. 5th wheel hitch
3. Bogan pistol grip for tripod, cost me $12 to get adapter plate and thread reducer so I could put it to use.
4. All kinds of crap from illiegals - clothes, sleeping bags, food, water and trash.
5. Heads, sheds and lots and lots of bones.
6. Junk bino's - don't know if the guy lost them or chucked them - believe I would have chucked them.
And the very best find of all was a Winchester Model 92 .25-20 Trappers carbine in an old cabin on the Wind River Indian Reservation back in 67 or 68 with my Dad. I still have it.