| Title | Devils Tower |
| Description | Phonolite porphyry of tower, closeup of weathered & unweathered surface. |
| Location | USA ▹ Wyoming ▹ Crook |
| Photographer | Joseph Hartman. 1899-12-30. |
| Collection | Joseph Hartman P00666. |
| Key words | Devils Tower, Wyoming |
| Tech details | 357 KB. Outcrop. Etkachrome, TIFF format. |
| GeoDIL number | 1530 |
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