One thing I just noticed.
This probably isn't a big deal, but it's a pretty easy fix, so, whatever. Just thought I'd point this out.
In the legend, under the section for Castles, it says that Castles are river crosses. A better way to say that might be Castles are river crossings. Like I said, not a big deal. I'm sure people will know what it means either way, just that river crossings sounds a bit better than river crosses. Up to you guys, though.
Love the map, can't wait for it to hit beta!