 | 607-24. Limestone tunnel in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007Similar picturesSmall thumbnails | Use large thumbnails | View as slideshow |
| 607-24. Limestone tunnel in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007Similar picturesSmall thumbnails | Use large thumbnails | View as slideshow |
                                                                                                                                                                                                                                                         |