xXx, yes, trespassing is trespassing regardless of posting signs, however, to get anything to stick, from a legal standpoint, you' ve got to post it clearly EVERYWHERE, I' ve been told that it' s best to post so that wherever you walk up on a place, you see two signs,i.e. one off to the right and one off to the left, then purple paint EVERYTHING. (purple paint here in KS means written permission only.)