Global InformationBearwallow Mountain Andesite information
| Bearwallow Mountain Andesite | |
|---|---|
| Stratigraphic range: Oligocene to Miocene, | |
| Type | Geologic formation |
| Unit of | Mogollon Group |
| Underlies | Gila Conglomerate |
| Overlies | Bloodgood Canyon Tuff |
| Thickness | 300 m (980 ft) |
| Lithology | |
| Primary | Andesite |
| Other | Basaltic andesite, dacite |
| Location | |
| Coordinates | 33°26′56″N 108°40′08″W / 33.449°N 108.669°W |
| Region |  New Mexico |
| Country |  United States |
| Type section | |
| Named for | Bearwallow Mountain (33°26′56″N 108°40′08″W / 33.449°N 108.669°W) |
| Named by | W.E. Elston |
| Year defined | 1968 |
  Bearwallow Mountain Andesite (the United States)  Bearwallow Mountain Andesite (New Mexico) | |
The Bearwallow Mountain Andesite or Bearwallow Mountain Formation is a geologic formation exposed in and around the Mogollon Mountains of southwest New Mexico. It has a radiometric age of 27 to 23 million years, corresponding to the late Oligocene to early Miocene epochs.