A new self-guided heritage trail telling the history of the Black Mountain lime quarries will be launched later in Brynaman.
The CALCH trail, created by the Dyfed Archaeological Trust, uses way markers, an audio guide, leaflets and a mobile phone app to guide visitors around the “white gold” quarries of the Black Mountains.
The £300,000 project has received funding from the Welsh Government and the European Regional Development Fund. The Black Mountain Centre, Brecon Beacons National Park and the National Museum of Wales were also involved in delivering the project.
The trail will be officially launched by Culture Minister John Griffiths at the Black Mountain Centre in Brynaman.