Alyn Valley Woods and Alyn Gorge Caves
Site of Special Scientific Interest in Wales From Wikipedia, the free encyclopedia
Alyn Valley Woods and Alyn Gorge Caves is a Site of Special Scientific Interest[1] on the border of Flintshire and Denbighshire in north Wales. Most of the site is also designated as the Alyn Valley Woods Special Area of Conservation[2] and the southern part includes Loggerheads Country Park. The SSSI has an area of 190.3 hectares while the SAC covers 168.3 hectares.[1][2]
| Site of Special Scientific Interest | |
 Devil's Gorge | |
  Location within Wales | |
| Location | Clwyd |
|---|---|
| Grid reference | SJ1800864866 |
| Coordinates | 53.174561°N 3.2281478°W |
| Interest | Biological and Geology |
| Area | 191.1 ha |
| Notification | 1 January 1957 |
A large part of the site is covered by broadleaved woodland with sessile oak, ash and sycamore among the dominant tree species.[1] Notable plants in the woods include stinking hellebore, green-flowered helleborine and wayfaring tree.[2] There are also areas of calcareous grassland with plants such as bloody cranesbill and lesser meadow-rue.[1] Much of the site lies on an escarpment of Carboniferous limestone and there are three cave systems: Ogof Hesp Alyn, Ogof Hen Ffynhonnau and Ogof Nadolig.[1] Lead ore, zinc ore, limestone and calcite were formerly mined in the area.[1]
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