| Site of Special Scientific Interest | |
  Location within Wales | |
| Location | Powys |
|---|---|
| Grid reference | SN8850430043 |
| Coordinates | 51°57′28″N3°37′26″W / 51.957658°N 3.6239923°W |
| Interest | Biological |
| Area | 7.99 ha |
| Notification | 15 August 1985 |
Caeau Bronydd-mawr is a Site of Special Scientific Interest in Brecknock, Powys, Wales. It is a fen meadow, notable for its contrasting neutral and acid grassland areas. The site is under private ownership. [1]
