RE: scouting for deer and found POT!! i think
Say you don't turn them in. What are they going to do with it? Most likely sell it.
Think about that kid who is going to buy it to 'try to be cool' and screw up his life....all which could be avoided if you turn them in.
Do you want to be part of the reason behind that kid messing up his life? What if its one of your kids....drug dealers don't care who they sell it to.
JMO, but I think worrying about your hunting spot is kind of trivial....again, thats just my opinion.