| Valle Alto Formation | |
|---|---|
| Stratigraphic range: Late Jurassic ~ | |
| Type | Geological formation |
| Unit of | Quebradagrande Complex |
| Lithology | |
| Primary | Shale, sandstone |
| Other | Conglomerate |
| Location | |
| Coordinates | 5°22′08″N 75°22′03″W / 5.36889°N 75.36750°W |
| Region | Caldas Department Central Ranges Andes |
| Country |  Colombia |
| Type section | |
| Named for | Hacienda Valle Alto |
| Named by | González et al. |
| Location | San Félix |
| Year defined | 1977 |
| Coordinates | 5°22′08″N 75°22′03″W / 5.36889°N 75.36750°W |
| Approximate paleocoordinates | 3°06′N 72°24′W / 3.1°N 72.4°W |
| Region | Caldas |
| Country | Colombia |
 Paleogeography of Northern South America 150 Ma, by Ron Blakey | |
The Valle Alto Formation (Spanish: Formación Valle Alto, Jva) is a geological formation of the Central Ranges of the Colombian Andes. The formation is composed of shales, sandstones and conglomerates and dates to the Late Jurassic period. Ammonites and fossil flora have been found in the Valle Alto Formation.