| Title | Mechanical Breakdown of Minnekahta Limestone in Rocky Gulch, Black Hills, South Dakota |
| Description | Minnekata Limestone (Lower Permian) and ponderosa pine extending root system into rock (mechanical breakdown). Can see area of brecciation in the limestone. |
| Chronostratigraphy | Lower Permian |
| Lithostratigraphy | Minnekahta Limestone |
| Geologic province | Black Hills |
| Location | USA ▹ South Dakota ▹ Custer |
| Coordinates | 43.901667,-103.413889 |
| Photographer | Joseph Hartman. 1975. |
| Collection | Joseph Hartman P00865. |
| Key words | Minnekahta, mechanical breakdown |
| Tech details | 581 KB. Outcrop. Kodachrome, TIFF format. |
| GeoDIL number | 1806 |
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