There is a chest in the Outlands Spur that I can see, but not get to. To see it, you have to go to the bridge controls that you activate to try to get at the Drakensburg during the story. In the room just before it, there is a glass floor that lets you see a small Dahl Chest. Originally, this post was going to ask how to get it, but I just figured it out. As you head from the control room to activate the Methane pumps, you go down a short ramp, and then there’s a drop. Before dropping, turn around and you’ll see an air barrier below the control room. An easy jump has you inside the room you could see from above.
The main reason I mention this is because I saw the chest when first playing the game, but couldn’t figure out how to get there. I looked online, but no videos tell how to get into that room. This makes it seem likely that people haven’t figured out how to get into it, hence this post. If this is already well known, I apologize.