Global InformationGlannau Penmon information
| Site of Special Scientific Interest | |
  Location within Wales | |
| Location | West Gwynedd |
|---|---|
| Grid reference | SH6211778674 |
| Coordinates | 53°17′13″N 4°04′12″W / 53.287°N 4.070°W |
| Interest | Biological and Geological |
| Area | 170.87 hectares (422.2 acres) |
| Notification | 1957 |
Glannau Penmon - Biwmares is a Site of Special Scientific Interest (or SSSI) in Anglesey, North Wales. It has been designated as a Site of Special Scientific Interest since January 1957 in an attempt to protect its fragile biological and geological elements.[1] The site has an area of 170.87 hectares (422.2 acres) and is managed by Natural Resources Wales.
- ^ Countryside Council for Wales website (Natural Resources Wales since 2013); Archived January 1, 2014, at the Wayback Machine accessdate: 30 December 2013