Lytle Formation
| Lytle Formation Lytle Sandstone | |
|---|---|
| Stratigraphic range: | |
| Type | Formation/Formation Member |
| Unit of | North-central CO:Dakota Group South-central CO:Purgatoire Formation |
| Underlies | South Platte Formation (at Dinosaur Ridge) Glencairn Formation (valley of the Dry Cimarron) |
| Overlies | Morrison Formation (unconformably) |
| Thickness | 40–120 feet (12–37 m) |
| Lithology | |
| Primary | Sandstone |
| Other | conglomeratic sandstone (notably chert gravel), variegated claystone |
| Location | |
| Coordinates | 38°36′09″N 104°52′04″W / 38.6025°N 104.867778°W |
| Region | Colorado New Mexico Wyoming |
| Country | United States |
| Type section | |
| Named for | Lytle, Colorado |
| Named by | G.I. Finlay |
| Year defined | 1916 |
The Lytle Formation or Lytle Sandstone is a geologic formation found in Wyoming, Colorado, and New Mexico.