IICwm Factory, Leri Mills Situated on N bank of Leri some 300m W of Talybont Bridge, approached by footpath and footbridge only.
IDinorwic Slate Quarry Workshops (Welsh Slate Museum Buildings) Located at the south-east end of Llyn Padarn to the east of Llanberis, the quarry workshops sit at the foot of the vast workings of the former Dinorwic Slate Quarry; the immediately surrounding land i
IIMill Farm (Felin Dolanog) 300 m east of St John's church, at north side of the minor road which passes through the farmyard. Stone-walled garden to west, fenced yard to east. The tailrace of the mill leat is visible further ea
IIMill Forge On the southern border of Ystrad Mynach, on the W bank of Rhymney River, fronting the thoroughfare.