Parys Mountain Windmill is on the Isle of Anglesey (Ynys Môn) in North Wales.
The windmill on Parys Mountain began work in 1878 to assist the steam engine in pumping the Cairns. The windmill – because it had five sails – was unique on Anglesey. This Mining Pump Windmill is thought to be the only surviving one in the United Kingdom.
The other unique thing about the windmill is the remarkable location – as it certainly is – amongst the bright multi-coloured waste – the result of many years of copper mining.