| Title | The Great Unconformity, Grand Canyon National Park, Arizona |
| Description | View of the Great Unconformity and associated conglomerates in Tapeats Sandstone overlying Proterozoic metamorphic rocks, Grand Canyon National Park. |
| Chronostratigraphy | Proterozoic, Cambrian |
| Lithostratigraphy | Tapeats Sandstone |
| Geologic province | Colorado Plateau |
| Location | USA ▹ Arizona ▹ Coconino. Near Grand Canyon. Grand Canyon National Park. |
| Photographer | Joseph Hartman. 1979. |
| Collection | Joseph Hartman P02500. |
| Key words | Grand Canyon National Park, unconformity, nonconformity, Tonto Group, hiatus |
| Tech details | 966 KB. Outcrop. Kodachrome, TIFF format. |
| GeoDIL number | 1344 |
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