HeritageGateway - Home
Site Map
Text size: A A A
You are here: Home > > > > Devon & Dartmoor HER Result
Devon & Dartmoor HERPrintable version | About Devon & Dartmoor HER | Visit Devon & Dartmoor HER online...

See important guidance on the use of this record.

If you have any comments or new information about this record, please email us.

HER Number:MDV13224
Name:Tin streamworks along the valley of the River Erme, Cornwood and Harford


Extensive area of tin streamworks along the valley of the River Erme


Grid Reference:SX 640 631
Map Sheet:SX66SW
Admin AreaDartmoor National Park
Civil ParishCornwood
Civil ParishHarford
DistrictSouth Hams
Ecclesiastical ParishCORNWOOD
Ecclesiastical ParishHARFORD

Protected Status: none recorded

Other References/Statuses

  • Old DCC SMR Ref: SX66SW/122

Monument Type(s) and Dates

  • STREAMWORKS (Constructed, Early Medieval to Post Medieval - 1066 AD to 1750 AD (Between))

Full description

National Monuments Record, 1976, NMR SX6363, 4 (Aerial Photograph). SDV156571.

Photograph Taken on 22nd April 1976.

Hankin, C. F., 1977-1979, Harford Parish Checklist (Worksheet). SDV149931.

Probable tinners' diversion of the river erme towards the left bank, the harford side. Waste heaps on the island so formed. Ruins of a rectangular building near the riverside, close to prehistoric enclosure wall.

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

Visible and recorded.

Greeves, T. A. P., 1990, An Assessment of Dartmoor Tinworking, 16 (Report - Assessment). SDV343684.

Erme valley. Major Dartmoor river system, with north south axis in centre of southern moor. All its length contains evidence of tin working to a greater or lesser extent, but with particularly extensive workings on moorland. Many 'retained dump' streamworks, only a few lode workings, eg. Erme pitts, documented in 17th century. Virtually unaffected by 18th/19th century tinworking. Also contains structural remains.

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

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

Approximately 7 hectares of tin streamworking remains are spread along both sides of the valley floor of the River Erme, south of Blatchford Bottom. The workings sit at the foot of the steep valley sides of Harford Moor and Stall Moor, and occupy the narrow strip of ground on either side of the river. The working area contains the usual evidence of low linear spoil heaps, pits and channels, mostly turf covered, and of which, some have been reinforced by low, stone revetments. Evidence of tin streamworking such as this exists along much of the moorland section of the Erme Valley, between Erme Head and Piles Copse (see MDV28121 and 28122). These streamworks have not been dated but, where available, documentation for tinworks of this type elsewhere on Dartmoor, would suggest a likely operational date between the 12 th and 17 th centuries.

Sources / Further Reading

SDV149931Worksheet: Hankin, C. F.. 1977-1979. Harford Parish Checklist. Parish Checklist. Digital.
SDV156571Aerial Photograph: National Monuments Record. 1976. NMR SX6363. National Monuments Record Aerial Photograph. 4.
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.
SDV343684Report - Assessment: Greeves, T. A. P.. 1990. An Assessment of Dartmoor Tinworking. Digital. 16.
SDV361913Cartographic: Newman, P.. 2018. Erme Valley Survey data (GIS and Excel spreadsheet). GIS ShapeFile. Digital. [Mapped feature: #117074 ]

Associated Monuments

MDV27917Parent of: Tinner's streamwork along Bledge Brook (Monument)
MDV27917Related to: Tinner's streamwork along Bledge Brook (Monument)
MDV4297Related to: Downing's House, a tinner's hut or cache, Cornwood (Building)
MDV122886Related to: Dry leat channel near Dry Lake (Monument)
MDV28124Related to: Small area of tin streamworks to the south of the River Erme, Cornwood (Monument)
MDV122905Related to: Streamwork south of Blatchfords Bottom. (Monument)
MDV4250Related to: Tin Mill between Dry Lake and River Erme, Harford (Monument)
MDV27917Parent of: Tinner's streamwork along Bledge Brook (Monument)
MDV27917Related to: Tinner's streamwork along Bledge Brook (Monument)

Associated Finds: none recorded

Associated Events

  • EDV8082 - Survey of the Upper Erme Valley

Date Last Edited:Jan 3 2020 1:31PM