Cwmebol Slab and Slate Cwm Ebol quarry started working on a small scale around 1860, worked by the
Cwmebol Slab and Slate Co. Ltd. In 1870 there were calls for a railway station to be built at Pennal, partly in anticipation of the output of Cwm Ebol. In early 1874, the company failed and the quarry was put up for sale. There was a fatal accident at the quarry on 30 April 1874, when quarryman Jacob Davies was crushed by a falling rock while working to clear an earlier fall.
New Cwmebol Slate and Slab In 1875 the quarry was taken over by the
New Cwmebol Slate and Slab Co. Ltd. The company built a new, lower mill which was completed in 1876, and they were exploring a second vein which they hoped could be worked to produce roofing slates. The company chairman was F. Thompson, and the quarry manager was R. G. Elwes.
John Jenkins By 1883, the quarry had been purchased by John Jenkins of
Aberystwyth. He remained the owner for the rest of the quarry's history. In 1885, the quarry produced just 257 tons of finished product. There was another fatal accident on 26 June 1894. Hugh Owen was repairing a drive pelt in the mill, when he got pulled into the machinery and was crushed. He died on 1 July of head injuries.
Decline and closure The quarry, never a great success, struggled in the late 1890s. In 1898 only twelve workers were employed there. In 1900, 19-year-old Llewelyn Jones lost an arm during blasting operations. A fuse had failed to go off, and Jones had been inspecting it when the charge ignited. Evan Jones, the quarry manager was subsequently fined £2 10s (equivalent to £ in 2018) for not properly enforcing the blasting rules. In July 1903, Jenkins was charged with not paying the rates due on the quarry and ordered to pay the £14 due for 1902 and 1903. The quarry was down to just eight workers in 1903. The quarry closed in 1906 == Transport ==