| Title | Niobrara Formation in Northeast North Dakota |
| Description | The buff-colored shale is part of the Niobrara Formation which consists of light-gray to yellowish-tan, blocky, calcareous clay. The Niobrara Formation documents a major marine transgression or onlap of the sea, resulting from a high eustatic sea level and crustal subsidence. |
| Location | USA ▹ North Dakota ▹ Cavalier. Near Vang. Vang Quadrangle. |
| Photographer | Joseph Hartman. 2002-05-07. |
| Collection | Joseph Hartman C9397. |
| Key words | 02e, Niobrara, shale |
| Tech details | 629 KB. Kodachrome, TIFF. |
| GeoDIL number | 2856 |
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