U-Bar Formation
| U-Bar Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Formation |
| Unit of | Bisbee Group |
| Underlies | Mojado Formation |
| Overlies | Hell-to-Finish Formation |
| Thickness | 1,700–3,500 feet (520–1,070 m) |
| Lithology | |
| Primary | Limestone |
| Other | Shale |
| Location | |
| Coordinates | 31°33′22″N 108°24′40″W / 31.556°N 108.411°W |
| Region | New Mexico |
| Country | United States |
| Type section | |
| Named for | U-Bar Ranch |
| Named by | R.A. Zeller Jr. |
| Year defined | 1965 |
The U-Bar Formation is a geologic formation in southwestern New Mexico. It preserves fossils dating back to the early Cretaceous period.