When exploring today with a couple of the team members on a survey, and we ran across
evidence that we're not the first ones here... or not alone. An old treehouse made of flotsam and jetsam, and a totem of some kind. Both look like they haven't been used in a while.
Here are a few sketches. I finally found my sketchbook and got the mechanic to help me out to scan it. As I thought, one of those things WAS a scanner... of sorts.
Anyway, here's my attempt at rendering what I saw: