On Thu, 14 Oct 2010 22:20:19 -0700, "Steve B"
wrote:
http://en.wikipedia.org/wiki/Lake_Peigneur
Steve
That's similar to the Knox Mine Disaster when the miners worked
upwards and hit the Susquehanna River, which filled the mine. There
are interesting films of the whirlpool and train cars being dumped in
to try to plug the hole that are shown on local TV occasionally.
http://en.wikipedia.org/wiki/Knox_Mine_disaster
RWL