| Title | Granitic dike cutting Black Canyon Gneiss, U.S. 50 roadcut near Black Canyon of the Gunnison National Park, Colorado |
| Description | Here we see a dipping granitic dike cutting the Precambrian Black Canyon Gneiss. Although hard to see, a pair of sunglasses (for scale) are in the photo just below the dike, right of center. |
| Chronostratigraphy | Precambrian |
| Location | USA ▹ Colorado ▹ Gunnison. Near Gunnison. US 50 roadcut near Black Canyon National Park. |
| Photographer | Dexter Perkins. 2001-06-29. |
| Collection | E181030992F-14. |
| Key words | dike, granititc, precambrian |
| Tech details | 434 KB. Vista. Cannon EOS Rebel 55mm. Kodak Elite Chrome 100 ASA. |
| GeoDIL number | 973 |
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