[1] It is located about one mile (1.6 km) outside of the village of Beddgelert in the Snowdonia National Park in North Wales.
[2] These were left relatively untouched until the Industrial Revolution when the tunnels were dug deeper into the hills largely due to rising demand for copper.
[3] In 1898 the flotation process, using a mixture of oil and water to extract minerals, was developed by the Elmore brothers, Frank and Stanley, who owned the mine with their father.
This was to increase the rate of extraction of copper from the ore.[2] In 1903 the mine was shut down as further working would be unprofitable as the veins had been largely exhausted.
The copper mine's original buildings, some of which still exist, were shown in the 1958 film The Inn of the Sixth Happiness.