Nietzel says the most common place the clues about "where warm waters halt" first lead people is to Eagle Nest Lake, about 100 miles north of Santa Fe, because it has a dam that holds back warm water and is known for its brown trout.

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Two days later, the SEALs flew back to Dam Neck, their base in Virginia.

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Egypt, for instance, seems to be stuck with the catastrophic Aswan dam, which is holding back the Nile's silt.

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England were under pressure at the scrum and increasingly on the back foot in defence and the dam finally burst just before the hour mark.

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Holding back an enormous reservoir, the dam was built in the face of strong opposition from critics who gave warning, among other things, that it would be vulnerable to earthquake damage that might cause disastrous floods.

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But back in 1963, while the reservoir dam in Cwm Tryweryn was still under construction, it was the actions of three young men that were making the headlines.

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And the major part of the project is a huge dam called the Cofferdam, which has been built to hold back the water from the docks.

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Since USACE was already budgetarily hard-pressed to maintain the very valuable lock and dam infrastructure and no third party would build a network for a single application, we went back to the drawing board.

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