Does anyone know if there are any
CONEX handling facilities upriver or on the great lakes.
I have looked for some on the great lakes when I planned to put a morrow project base on a Great Lakes island, but I could not find any facilities or ships that used them.
I think most lake and river traffic is limited to raw materials on massive single cargo type ships or barges. That might limit how efficiently you can move things.
Edit. I should note there are a few passenger/vehicle ferries on the great lakes in addition to the cargo ships but I don't see why the Mississippi would have a similar number due to the number of bridges.