 He describes the Parc [colliery] and, further down the valley, the Dare colliery, and the constant processions of [coal]-laden trucks running down the railway that flanked the Parc River.The pioneer of Cwmparc’s development was David Davies of Llandinam described as, ‘foremost of Welsh industrial kings and founder of the renowned Ocean Coal Company’, who had in 1862 negotiated with Crawshay Bailey to commence coal mining on the Tremains Estate.Sinking operations were begun in August 1866 and by the end of that year Parc Pit had produced its first output of coal.