| Title | Upper Cretaceous Hell Creek Formation and Paleocene Tullock Formation |
| Description | Upper Cretaceous Hell Creek Formation and Paleocene Tullock Formation (Fort Union) Group, Garfield County, Montana. View southwest of Iridium Hill, which includes K/T boundary. Note that view includes a taller butte in the background. |
| Chronostratigraphy | Upper Cretaceous, Maastrichtian |
| Lithostratigraphy | Hell Creek, Tullock (Fort Union) |
| Geologic province | Williston Basin |
| Location | USA ▹ Montana ▹ Garfield. Near Jordan. |
| Photographer | Joseph Hartman. 2001-02-22. |
| Collection | Joseph Hartman C07207. |
| Key words | Upper Cretaceous, Hell Creek Formation, Paleocene, Tullock Formation, Montana |
| Tech details | 557 KB. Outcrop. Kodachrome, TIFF format. |
| GeoDIL number | 125 |
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