Advanced 7,000 year water wells found in Germany
Excavated earlier this year outside of Leipzig, Saxony, scientists from the University of Freiburg were able to date the wood used to line the well shafts back to between 5206 and 5098 BCE – the Early Stone Age.
The four wells, which reach seven metres into the earth and were likely used to provide a small settlement with fresh water, did not match up with what historians believed man was capable of at that time.
The discovery seemed to suggest that early settlers in the area were working with wood long before metal tools were invented, and points towards a much higher standard of living for early stone age settlers than initially thought.
Elaborate woodwork techniques made this even more apparent – the corners of the wells had been bound tight enough to survive 7,000 years underground - “it was a big surprise,” said Willy Tegel, the archeologist who headed the team.
http://www.thelocal.de/sci-tech/20121220-46877.html#.UNSDQI4UpQ2
= new reply since forum marked as read
Lots of construction details, etc... 
http://www.plosone.org/article/info:doi/10.1371/journal.pone.0051374
(Thanks to my friend Jen, at Archaeologyfieldwork http://www.archaeologyfieldwork.com/AFW for finding this! 
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