Slack, Mount Pleasant and Barmasters Grove Lead Mines 390m South East of Blakelow Farm
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Derbyshire County Council
Derbyshire Dales District Council
SE258258 (425781, 359460)
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The remains of Slack, Mount Pleasant and Barmasters lead mines, situated on Bonsall Moor. Most of the surviving surface remains represent mining activity of the 18th and 19th centuries. The monument survives as a series of earthwork, buried, standing and rock cut remains which include several almost parallel veins and scrins. These are aligned roughly north to south and are marked by a series of hillocks interspersed with the remains of mining shafts and open cuts. Slack Mine, which includes Nether Slack, Upper Slack and Scorah Slack, is situated on two parallel veins. At the northern end of the monument, in the area of Nether Slack, is a shaft which was documented in the late 18th century as being 50 fathoms deep. This has now partly collapsed but sits adjacent to a retaining wall and coe, close to Bonsall Lane. Close to these remains is an ore processing area including a water channel and a buddling area. Towards the southern end of the monument, in the vicinity of Scorah Slack, is a large shaft surrounded by a substantial coe with retaining walls. Similar remains characterise Mount Pleasant and Barmasters Grove mines which are situated in the eastern half of the protected area. Within the easternmost field are the remains of at least ten open shafts scattered along the lines of hillocks, hollows and deep open pit holes which mark the line of the lead veins. The individual mines are not marked by concentrated areas of activity but instead relate to stretches of the vein which were worked by different miners or groups of miners, a characteristic of the Derbyshire lead mining custom. Scheduled. Post medieval lead workings and mine consisting of rakes, spoil heaps, mine shafts with associated shaft mounds are visible as earthworks and structures on air photographs. Remnants are still extant on Google.Earth.com 30-APR-2007 photography (accessed on 20th November 2009).
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