| Title | Basal Conglomerate from the White River Group in Rocky Gulch, Black Hills, South Dakota |
| Description | White River Group (Oligocene) basal conglomerate. |
| Chronostratigraphy | Oligocene |
| Lithostratigraphy | Minnekata Limestone |
| Geologic province | Black Hills |
| Location | USA ▹ South Dakota |
| Photographer | Joseph Hartman. 1975. |
| Collection | Joseph Hartman P00873. |
| Key words | Rocky Gulch, White River Group, Conglomerate, Black Hills |
| Tech details | 396 KB. Outcrop. Kodachrome, TIFF format. |
| GeoDIL number | 1808 |
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