Visual Materials
Big Creek - Mammoth Pool - Tunnel muck pile after storm, and Shakeflat breaking cofferdam
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Big Creek - Mammoth Pool - Shakeflat after failure of cofferdam
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Big Creek - Mammoth Pool - Shakeflat after failure of cofferdam
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Big Creek - Mammoth Pool - Shakeflat tunnel liner
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Big Creek, Florence Lake Dam - Tunnel crew on muck pile ater breaking thru between 60
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Big Creek - Mammoth Pool - Face and tunnel sites at downstream heading at Shakeflat
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