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Macintosh Picture Format  |  1996-09-10  |  10.4 KB  |  640x40  |  4-bit (8 colors)
   ocr: Meteor crater in northern Arizona, nearly a mile wide, 2,000 feet deep and formed 50,000 years ago by the impact of a large fragment of the Canyon Diablo iron meteorite. (Photo by A. Seltzer)