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Old 09-26-2010, 08:46 AM   #7
xoxoxoBruce
The future is unwritten
 
Join Date: Oct 2002
Posts: 71,105
Most US dams that size, are smooth faced concrete. But how they negotiate vertical rock walls is beyond me. I know they have hooves that will stick to a rock sticking out 2 or 3 inches, but their bodies don't fit in that space. That means their center of gravity is hanging out in space. It's magical I tells ya... ever wonder why the devil has goat horns?
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