Is this the map you were trying to post, showing a yellow band running from the Beijing area through the Asian steppes into the Balkans:
http://library.thinkquest.org/J003409/media/!map.jpe?tqskip1=1
?
I'm assuming the yellow band shows where mummies of various sorts have been found? If so that's quite interesting, as the yellow area is the same band through which some authors (e.g. Carlo Ginzburg in Ecstasies) have argued that Asian shamanic influence penetrated Europe via the Scythians, and presumably other steppe peoples would've used this same route as well.