P.S. Dolphin, your dating of 'dinosaurs': "Hua Yang Guo Zhi, a book written by Chang Qu during the Western Jin Dynasty (265–316), reported the discovery of dragon bones at Wucheng in Sichuan Province."
Well, I guess they could have been dragon bones...

@ keebler, I hope you're kidding, but if you're serious, I suggest you start a forum thread on this ("I;ll be glad to kick in my 2 cents' worth), as we've gotten pretty far away from this Neolithic graveyard.

Hopefully somebody will be paying attention to this kind of thing while they are busy banning those polluting swimmers - or is the water in fact not clean enough to swim in? My impression is that it is clean enough.

OK, cloudtrapezer, agreed. Tourism is an industry run on an absurd basis that produces contradictory demands in the promotion of profitable businesses dependent on catering to rather absurd (especially in the case of ethnic tourism) dreams of a relatively new tourist industry, and I agree with what you say about the Chinese media. The contradiction evident in this recent scarp between local vendors and, apparently rather arrogant, tourists. The route this kid of development is taking, however, is not likely to get less contradictory as the tourist industry become less 'new' - the best you'l get is a 'PC', smug, attitude among those who benefit from it and still consider themselves above it all.

So the idea is that swimmers pollute and that swimming is dangerous? What can the boats do that do NOT belong to the scuba-diving club?