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Mark Birkle: Tributary of White Oak Creek
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Mark Birkle: White Oak Creek Trib. - Winter Waterfall 3
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Mark Birkle: White Oak Creek Trib. - Winter Waterfall 2
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Mark Birkle: White Oak Creek Trib. - Winter Waterfall 1
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Mark Birkle: Young Waterfall
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Mark Birkle: Photographers in the Bubble
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Mark Birkle: White Oak Creek Trib. - Confluence with White Oak Creek