Map of eastern Xinjiang with prehistoric sites and the courses of the Silk Roads by Folke Bergman 1939.
Folke Bergman
CC BY 2.5
<i>Map of eastern Xinjiang with prehistoric sites and the courses of the Silk Roads</i> by Folke Bergman in his Book <i>Archaeological Researches in Sinkiang. Especially the Lop-Nor Region.</i> (Reports: Publication 7), Stockholm 1939, Page 25 Fig. 4. Copyright 2006: Sven Hedin foundation, Stockholm.  <a rel="nofollow" class="external autonumber" href="http://www.etnografiska.se/smvk/road/www/article/10/jsp/Render.jsp?t=99&amp;a=6731&amp;l=en_US">[1]</a>