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Iron Hoop Cave
Alan Cressler in a decorated passage downstream in Iron Hoop Cave
Iron Hoop is a long, Horizontal River Cave originally discovered by Marion O Smith. He missed the crawlway that leads to several miles of borehole.
Photograph keywords: 12OCT08, 23, 628428, Canon EOS-1Ds Mark III, Cave, Iron Hoop, Iron Hoop Cave, MM7741, mm7741_081012_04783.tif, TAG, TIFF, United States
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