>>216163776
no, the teal is where they have deepwater port connected to rail lines receiving trade. I think like Atlanta might and phoenix and whatever is near atlanta, might be rawligh are the only exceptions. the way they are measuring GDP the ports of entry count for everything that gets traded
>>216163767
if you are talking about the upper peninsula that's only there because in OP's map they must be measuring based on states instead of countries because nothing happens in the UP. and yeah the you're right about the trade thing. chicago is on the great lakes and has a ton of rail lines