There are pretty huge swaths of public lands in America that are easy to look up on a computer. Texas is one if the few states that's deficient in them, by comparison. As unpopular as this statement may be, it really does behoove you to look up where you're going before you start just cutting down fences. But I never bought into that whole anarchy argument, as it quickly devolves into might makes right, by default.
Also, these are typically situations where someone owns land on both sides of a river, and illegally strings wire across the river. Ignoring the fact that the river is a public waterway. Even though their land is posted against trespassing.
