Built out the two coal mines today, and got all the belt run for them.

Brought all the belts down to the water line, and then brainstormed for a while what the hell I'm going to do for these factories.

I think I've settled on a concept of "single flat factory floor for everything, and make it as compact as I can manage", so I took the grand total of the footprint area of all the machines I need, added an extra 50%, and used that to estimate the size of the floor I'll need.

Then I built out the Iron Ingot lines.