| Title | Polished, Proterozoic-age Vishnu Group, Grand Canyon National Park, Arizona |
| Description | View from Colorado River of fluted and polished crystalline rocks of the Precambrian-age Vishnu Group in the Upper Granite Gorge, Grand Canyon National Park. |
| Chronostratigraphy | Precambrian |
| Lithostratigraphy | Vishnu Group |
| Geologic province | Colorado Plateau |
| Location | USA ▹ Arizona ▹ Coconino. Near Grand Canyon. Grand Canyon National Park. |
| Photographer | Joseph Hartman. 1985. |
| Collection | Joseph Hartman P05089. |
| Key words | Grand Canyon National Park |
| Tech details | 833 KB. Outcrop. Kodachrome, TIFF format. |
| GeoDIL number | 1369 |
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