Working on Phase 4, looked up and noticed this. Kudos to you if you can guess where in the map this is just looking at the image.
A clue, built the bridge a while ago as a key link spanning two new regions. I needed the nodes underneath it for a major component in Phase 4.
That’s one thing I think this game is missing is warehouses. Like, I remember Jace once saying they’d be interested to have robots running around your factories, but couldn’t think of a reason for this to happen. Forklifts in a warehouse. You can sort of accomplish this because the little factory cart can be set on automated paths like a truck, but even if you do have a freight yard there’s no coupling and decoupling cars, there’s no pallets of cargo waiting to be loaded, etc.