Please, no fighting..... save it for the 'battlefields' on the maps.
From my player viewpoint, as a non map-maker, I like reading all the comments and am impressed by the knowledge of map-making and of the time period of this particular map.
Maybe someone else already pointed this out, if so... sorry for the repeat.... the western states are the same color as the insets that are around the edge of the map. Even a different shade of one or the other would be helpful.
There is one ship.... historically how many ships were there? A small fleet? Two or three?
When I read the comments I think people are liking your idea. Please continue, as I said before, I am looking forward to playing this map.
And, I still like the surrender feature.