http://www.umass.edu/wsp/conferences/wswg/16/koreamap1.html
http://www.docuverse.com/blog/donpark/CategoryView.aspx?category=Korean
http://www.koreainfogate.com/aboutkorea/item.asp?src=menu02_03
If these folks go far enough north and back enough in time, they're gonna bump into some Caucasian folks who were there in the north. (They really won't like that)