| Pinkerton Trail Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Formation |
| Unit of | Hermosa Group |
| Underlies | Paradox Formation |
| Overlies | Molas Formation |
| Thickness | 180 m (600 ft) |
| Lithology | |
| Primary | Limestone |
| Other | Shale |
| Location | |
| Coordinates | 37°27′22″N 107°48′14″W / 37.456°N 107.804°W |
| Region | Four Corners |
| Country | United States |
| Type section | |
| Named for | Pinkerton Trail |
| Named by | Wengerd and Strickland |
| Year defined | 1954 |
  Pinkerton Trail Formation (the United States)  Pinkerton Trail Formation (Colorado) | |
The Pinkerton Trail Formation is a geologic formation that is found in the Four Corners region of the United States. It contains fossils characteristic of the Atokan and Desmoinesian Ages of the Pennsylvanian.