Team Troglodyte: I've given this some thought and decided that although the area is not fenced, not posted with no trespassing signs, not daubed with purple paint, and I have not been told by anyone who appears to have any control over the property that they consider access to be trespassing, I will archive the cache rather than cause another cacher to have an unpleasant experience with law enforcement. Thanks to all who visited and especially all those who left a favorite point behind.