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David Renwald: Green Pool - Mamiya m645 & Arsat 30mm
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David Renwald: Trout Creek - Mamiya m645 & Arsat 30mm
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David Renwald: Collapsed thermal pool - Yellowstone
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David Renwald: Grand Canyon of the Yellowstone
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David Renwald: bluestair
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David Renwald: Thermal Pool-Mamiya 645-Arsat 30mm
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David Renwald: Norris Geyser Basin
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David Renwald: arsat-boxcar1
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David Renwald: Arsat 30mm f3.5 - Norris Geyser Basin
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David Renwald: Pond - Mamiya 645 - Arsat 30mm