Pit and hillside. Had Blondin.

The main pit remains visible today, along with an adit, a shaft, and the remnants of several structures. Bases that once anchored the Blondin ropeway can still be identified, as can a concrete machinery plinth that probably supported a late-period oil engine. Evidence also survives of a makeshift cableway employed when the spoil heaps were later reworked. The incline, once a well-constructed embankment, still exists but has suffered considerable erosion over the decades.

This pit and hillside operation began as an extension of the Ty Mawr quarry, initially accessed through an open-cut excavation. As the workings grew deeper, operators installed a Blondin aerial ropeway to transport material from the quarry face. During the 1860s, the site employed as many as forty workers, though yearly production never exceeded one thousand tons. Processing took place in a mill fitted with three saws driven by a Robey steam engine, and the finished slate traveled to the road along a long, gently graded incline. Operations came to an end during the 1930s.