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| | What is that black stuff? It confused geologists for a while, but it's welded ash fall (tuff) which turned into glass. |
| Camera: OLYMPUS IMAGING CORP. E-300 | Date: 2/18/06 10:35 AM | Resolution: 3264 x 2448 | ISO: 100 | Exp. Time: 1/160s | Aperture: 7.1 | Focal Length: 30.0mm |
| Total images: 116 | Last update: 1/12/08 11:34 PM | Help |