In my research area I have been finding stuff like this.  I literally find hundreds of fallen trees, broken trees,  logs, branches and other stuff you would associate with being in the forest.  It is the stuff that I find that were made by something or an impression in a remote area that there is no answer to if there is not a bipedal primate. 

 

Deer, mountain lion or bear are not able to pick up big branches and wedge them between 2 trees or build a structure.  Something or someone is making these.  I found no evidence of people in the area.  This place is rugged and steep.

 

I know what made these but do you?