For quite some time I’ve wanted to do something along these lines. Given America isn’t completely round (what country is!?), it look a little finagling to get things right. Or, as right as they could be for this type of thing.
Mostly, my key objective was to keep the cities in roughly the same area of the US as they are in Amestris. That, and the relation between each of them.
And I think all in all, it works out rather well. Save for that Central City is in the middle of a bunch of corn fields…(But bonus point! Some where in the south eastern part of Nebraska, there is legitimately a town called Central City. I’m not kidding!)
(And yes, I am WELLaware Amestris has nothing to do with America.)