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The Archaeological Conservancy sponsors some international tours: http://www.archaeologicalconservancy.org
as does Crow Canyon: crowcanyon.org.
The focus is definitively on archaeology and anthropology (experts as guides, some specialty lectures and "behind the scenes" activities) but time is on the schedule for local markets or nature preserves but without obvious "kickback" shopping opportunities prevalent on some general tours.
Something is not right. This message is just to keep things from messing up down the road