Trespass to land doesn't require damage, all it requires is the willful, unauthorized, entry onto land in another's exclusive possession. Vandalism requires that there by some property damage.
This isn't true. You're overestimating the strength of property rights to land. You should follow the link provided elsewhere in this branch of the discussion - http://www.shouselaw.com/trespass.html
It's amazing how many people think that traversing and trespassing are the same thing. Sadly, in many states, they are the same under the law.
I wish there were stronger free-to-roam laws. I don't think anybody has the right to tell another person they can't traverse land so long as they don't enter any structures, do any damage, take anything, disturb any wildlife, etc.
