Most Bammer diggers are pretty secretive about their diggin. We have those "Everything you find belongs to the state" laws and they will put you in the pokey if they catch you digging on public property or on private property with out written permission. I have had buds who try to get me to go with them but they never have the paper.
Now across the state line in Florida it is a lot easier. If it is not posted (visable signage), there is no fence, no gate on the fence and the property is not cultavated (mowed) you can dig. I used to watch the local paper. When property is abandoned and taxes aren't paid the property is condemed and everything is flattened. Third notice I am goin in the house and digging because with in 2 weeks it will all be pushed with a dozier. Yes it is all legal.