tree structure of logs and sticks placed around tree trunk as some kind of landmark or territory markertree branch placed across trail pathmountain rocks fire pit and is example of man made structuretree branch placed across trail path 2log wedged between tree fork used as directional marker that it points towardslog wedged between tree fork used as directional marker that it points towards 2log wedged between tree fork used as directional marker that it points towards 3log wedged between tree fork in river stream as landmark to X marks spotlog wedged between tree fork in river stream as landmark to X marks spot 2log wedged between tree fork in river stream as landmark to X marks spot 3