in southern Oregon, depending if your in the woods or not, then I would say its a gray area. Technically for it to be an actual trespass then a sign would have to be up and even then it can’t be a garden variety sign from the store. but it is one of those things to be absolutely sure in the state one lives in.
A homeowner at Old Jake Duncan’s tannery in Big Stone Gap, Virginia might have his own definition of trespassing and a sign would not be a prerequisite to fill you with 00 buckshot.
SOFIBlog.com ... 352-324-6042 Florida 
It can get you shot in Texas.
It is trespassing in Virginia
In AL I was told by law enforcement that it could even be viewed as B&E in some counties.
in southern Oregon, depending if your in the woods or not, then I would say its a gray area. Technically for it to be an actual trespass then a sign would have to be up and even then it can’t be a garden variety sign from the store. but it is one of those things to be absolutely sure in the state one lives in.
A homeowner at Old Jake Duncan’s tannery in Big Stone Gap, Virginia might have his own definition of trespassing and a sign would not be a prerequisite to fill you with 00 buckshot.