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Exploring Ancient Springs in Texas

Researchers are exploring freshwater springs in Texas that date back to the end of the last ice age. Spring Lake, near San Marcos, Texas, is unique because it was dammed 150 years ago, creating an underwater archaeological preserve.
kefra

kefra (56)

kefra
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I am interested to see how the Researcher explored the freshwater springs .

Sun, 02/17/2013 - 16:19
sarah-ibrahim

sarah-ibrahim (20)

sarah-ibrahim
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very good 

 17/02/2013 15:19
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Sun, 02/17/2013 - 16:20
juaness09

juaness09 (15)

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Well done.

 17/02/2013 15:20
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