from ‘Lead Mining in the Peak District’ –

“Mandale mine was worked on a large scale from 1797 when a sough was driven up the vein. Large quantities of ore were found in 1820 and again in 1823.
Between 1834 and 1836 the Lathjkill Company erected a huge 52 feet diameter water wheel capable of pumping 4,000 gallons of water per minute from a depth of 20 fathoms. The wheel was made at the Duckmanton Foundry of Benjamin Smith and Co. and cost over £500. In 1840 another smaller wheel, 35 feet in diameter was erected a little lower down the valley at the Mandale mine, pumping from 90 feet below the level of the River Lathkill. Later in 1847 a Cornish engine made by Messrs. Grahams, Milton Ironworks, Elsecar, was erected at this latter mine. The cylinder was 65 inches in diameter and the engine was rated at 165 horsepower. The water influx was, like Lathkill Dale mine, a very acute problem, and the mine was abandoned in 1851.”

Lathkill Dale and Mandale Mines and soughs are listed as a Scheduled Monument in Historic England.