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HER Number:MDV24815
Name:Large area of openwork around Ducks' Pool, Dartmoor Forest


Large area of openwork with extensive spoilheaps visible around Ducks' Pool


Grid Reference:SX 626 678
Map Sheet:SX66NW
Admin AreaDartmoor National Park
Civil ParishDartmoor Forest
DistrictWest Devon
Ecclesiastical ParishLYDFORD

Protected Status

  • SHINE: Structural and earthwork remains of Medieval or later tin streamworks on the River Erme and its tributaries, Blacklane Brook, Dry Lake and Red Lake, as well as blowing houses and tinners buildings and possible prehistoric enclosures at Wollake

Other References/Statuses

  • Old DCC SMR Ref: SX66NW/138
  • SHINE Candidate (Yes)

Monument Type(s) and Dates

  • OPEN CUT (Constructed, Medieval - 1066 AD to 1539 AD (Between))

Full description

Royal Air Force, 1946, CPE/UK 1890, 4278 (Aerial Photograph). SDV140289.

Photograph taken on 10th December 1946.

Royal Commission on the Historical Monuments of England, 1985, Aerial Photograph Project (Dartmoor) - Dartmoor Pre-NMP (Cartographic). SDV319854.

Openwork extends to SX62756798 with extensive spoilheaps visible.

Newman, P., 2018, Erme Valley Survey data (GIS and Excel spreadsheet) (Cartographic). SDV361913.

Area of streamworking shown on survey.

Newman, P., 2018, The Upper Erme Valley, Dartmoor National Park, Devon: An Archaeological Survey, Appendix 1 (Report - Survey). SDV362921.

Eleven hectares of tin streamworking following the tributary of Ducks Pool Stream, which merges with the workings at the head of Blacklane Brook to the east. The limit of the tinwork’s main working area is well defined by a scarp of between 1 metre and 4 metres deep running around most of the perimeter. The interior working area contains the usual evidence of low linear spoil heaps, pits and channels. Some have been reinforced by low stone revetments, of which fine examples exist towards the eastern end of the working close to the stream channel. Two probable earthwork reservoirs are visible on LiDAR data to the south of the working at SX 62610 67816 and SX 62730 67874, though the overgrowth of mollinia grass has disguised them on the ground. Both are crescent shaped and approximately 50 metres long. The western reservoir, slightly higher up the slope was fed by a leat, also now silted and disguised by vegetation. This tinwork has not been dated but, where available, documentation for tinworks of this type elsewhere on Dartmoor, would suggest a likely operational date between the 12th and 17th centuries.

Sources / Further Reading

SDV140289Aerial Photograph: Royal Air Force. 1946. CPE/UK 1890. Royal Air Force Aerial Photograph. Photograph (Paper). 4278.
SDV319854Cartographic: Royal Commission on the Historical Monuments of England. 1985. Aerial Photograph Project (Dartmoor) - Dartmoor Pre-NMP. Royal Commission on the Historical Monuments of England Aerial Photograph P. Cartographic.
SDV361913Cartographic: Newman, P.. 2018. Erme Valley Survey data (GIS and Excel spreadsheet). GIS ShapeFile. Digital. [Mapped feature: #122462 ]

Associated Monuments

MDV5160Related to: Erme Pits Hill, Blacklane Mire, Middle Mire and Red Lake streamworks (Monument)
MDV54857Related to: One of two tinners' buildings east of Ducks Pool Stream, Dartmoor Forest (Building)
MDV20839Related to: Tinners' building in streamworks east of Ducks Pool Stream (Monument)
MDV126698Related to: Tinners building north of Duck's Pool (Monument)
MDV126699Related to: Tinners building west of the Blacklane Brook (Monument)

Associated Finds: none recorded

Associated Events

  • EDV8082 - Survey of the Upper Erme Valley

Date Last Edited:Apr 30 2020 1:58PM