[Freegis-list] China (Yulin) geodata

[Yves Moisan]

Hi all,

I'm having a hard time finding geographical data of China not in canned form. 
I'm looking for maps (ideally shapefiles ...) of the watersystem (rivers,
watersheds ...) of the Yulin, Guangxi autonomous region area.  Also, detailed
maps of the Yulin city area (roads, administrative divisions, etc.) or satellite
images besides what one gets with Google Map/Earth would be interesting. 

Any pointers appreciated!

Yves Moisan