Artifact or Junk?

The low water on the Yukon river means things that are usually under water are exposed. I was planning to take a picture of this huge chain that I’ve seen lying in the water for the last few weeks. Someone scrounged it! There’s tire tracks and no chain. 

- update- a fantastic gal at our government heritage department called me back after taking a look and apparently the water has risen just enough that the big chain isn’t easily visible. It is still there! And they are still trying to figure out what the chain was for...-

Other stuff is still there, but not as cool. 

I think the old office chair is junk not artifact yet but give it a couple years!