Foel Fawr Lime Workings can be seen close to the A4069 road as it starts to descend into Llangadog. The road across the Black Mountain was built in 1819 to supply coal to the upper Towy Valley, and it also made it possible to start working limestone on a large scale.
Source: A Guide to the Industrial Archaeology of the Swansea Region, by Stephen Hughes and Paul Reynolds, AIA, 1989