The 1st and 2nd editions of the historic 25-inch Ordnance Survey maps, published in 1889 and 1905 respectively, depict a woollen factory at this location. The 1889 map depicts a building on the north-west bank of the Afon Cwerchyr, supplied with water by a sluice and a leat 340 metres long; the water wheel was on the north-east end of the factory. By 1905 a small building on the south-east bank had been enlarged and water brought to a wheel on its north end, by making a branch from the existing leat and carrying it over the river on an aqueduct.
W J Crompton, RCAHMW, 14th October 2019.