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63 viewsJan 10, 2011
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67 viewsJan 10, 2011
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60 viewsJan 10, 2011
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Cooling tubes in the walls.66 viewsTo set the concrete while building the dam, tubes were inserted for cool water to run through. Later they were cutoff and these nibs remain.Jan 10, 2011
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63 viewsJan 10, 2011
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Mammoth dung.165 viewsJan 10, 2011
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