 | 107-15. Erosion of limestone near Gray s Arch. Red River Gorge, Kentucky, November 6, 1999.Similar picturesSmall thumbnails | Use large thumbnails | View as slideshow |
| 107-15. Erosion of limestone near Gray s Arch. Red River Gorge, Kentucky, November 6, 1999.Similar picturesSmall thumbnails | Use large thumbnails | View as slideshow |
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