Porth yr Ogof re-emergence

---

Where the Afon Mellte goes underground for a few hundred metres.

---

Size: 4254px × 2840px
Location: Ystradfellte Mid Wales UK
Photo credit: © radnorimages / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -emergence, exit, mellte, ogof, porth, radnorimages, reemergence, river, undergroud, underground, yr