Tawe-Uchaf is a community in Powys, Wales. Situated north-east of Ystradgynlais in the upper valley of the Afon Tawe (hence the name), it includes the villages of Caehopkin, Coelbren, Glyntawe, Pen-y-cae, and Ynyswen. It had a population in 2001 of 1,516, increasing at the 2011 Census to 1,562.
There are many caves in the area, the most famous of them being Dan-yr-Ogof, one of the largest cave systems in western Europe and a popular attraction for visitors.
A complex of Bronze Age monuments known as Cerrig Duon (the "black rocks") – consisting of a stone circle, avenue, and three-stone row – and Maen Mawr (the "great stone") can be seen near the source of the Tawe at the northern end of the community area.
Opencast coal mining is an important activity in the area.
The Tawe Uchaf Community Council has thirteen community councillors representing three community wards: Ynyswen Penycae, Caehopkin and Coelbren. The council represents the community on planning issues and other matters.
- Tawe Uchaf Community Council website
- Brecon Beacons National Park
- Cwmtawe Uchaf Parish Community (Church in Wales)
- Fforest Fawr Geopark