Parys Mountain Windmill

As the mine progressed, its shafts were sunk further into the ground and the need for the removal of water increased.

In order to save money on the coal required to power the engines,[1] the Parys Mountain Windmill was constructed in 1878, around 200 metres (660 ft) the mine,[2] to replace the engines.

The windmill fell into a state of disrepair and, by the end of the 1920, was described as a "capless shell".

The structure was built at the mountain's highest point, 138 metres (453 ft) above sea level.

[1] The Royal Commission on the Ancient and Historical Monuments of Wales reports that a survey of the structure, undertaken in 1975, noted that it measured 10.8 metres (35 ft) high and featured a 2.3-metre (7 ft 7 in) deep cellar.