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Amethyst Cirmo looks at prehistoric Cougar tracks in Blue Spring Cave, TN
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Gypsum Flowers, M Trunk, Blue Spring Cave. TN
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Gypsum Flowers, M Trunk, Blue Spring Cave. TN
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Closeup on Gypsum flowers in M Trunk, Blue Spring Cave TN
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Gypsum Flowers and Piles in M Trunk, Blue Spring Cave, TN
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Gypsum Flowers and Beards in M Trunk, Blue Spring Cave, TN
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Gypsum Flowers, M Trunk, Blue Spring Cave. TN
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Spiraling Gypsum Flower, M Trunk, Blue Spring Cave, TN
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Gypsum Needles, Blue Spring Cave, NA Survey
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Closeup on Gypsum Beard in M Trunk, Blue Spring Cave TN
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M Trunk, Bluespring Cave, Spiraling Gypsum Beard
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M Trunk, Blue Spring Cave, Gypsum Beards
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Blue Spring Cave, M Trunk
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NA Survey borehole Blue Spring Cave TN, Sean Lewis, Greg Menkedic, Wyatt Clark
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NA Survey borehole Blue Spring Cave TN, Gypsum Needles
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NA Survey borehole Blue Spring Cave TN, Gypsum Needles
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NA Survey borehole Blue Spring Cave TN Greg Menkedick, Wyatt Clark
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NA Survey borehole Blue Spring Cave TN, Gypsum Beard
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NA Survey borehole Blue Spring Cave TN Gypsum Needles
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NA Survey borehole Blue Spring Cave TN Greg Menkedick
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NA Survey borehole Blue Spring Cave TN Greg Menkedick, Ethan Cirmo
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Dave Stahl JHS traverse Blue Spring Cave TN
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Bluespring Cave, M Trunk