Browse subjects
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| Ash Fork to Phoenix | December 1956 | ||
| The paradox of a lava flow | |||
| Carbon Butte - an annual landslide in the Grand Canyon | T.D.Ford and W.J.Breed | Summer 1970 | |
| Scenic railroad | October 18, 1953 | ||
| Suicide on wheels | March 21, 1971 |