| Site of Special Scientific Interest | |
 | |
  Location within Somerset | |
| Location | Somerset & Devon |
|---|---|
| Grid reference | SS800497 |
| Coordinates | 51°14′02″N 3°43′13″W / 51.23383°N 3.72018°W / 51.23383; -3.72018 |
| Interest | Geological |
| Area | 13.3 hectares (0.133 km2; 0.051 sq mi) |
| Notification | 1989 (1989) |
| Natural England website | |
Glenthorne (grid reference SS800497) is a 13.3 hectare geological Site of Special Scientific Interest in the parish of Oare within the Exmoor National Park, on the border of Somerset and Devon, notified in 1989.
Glenthorne is a Geological Conservation Review site because of the Trentishoe Formation of the Hangman Sandstone Group. The Hangman Sandstone represents the Middle Devonian sequence of North Devon and Somerset.[1] These are unusual freshwater deposits in the Hangman Grits, which were mainly formed in desert conditions.[2]
