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HER Number: | MDV24808 |
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Name: | Dry Lake openwork, Dartmoor Forest |
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Summary
Openwork with extensive spoilheaps visible extending to SX63506705, running north-south either side of Dry Lake.
Location
Grid Reference: | SX 635 668 |
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Map Sheet: | SX66NW |
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Admin Area | Dartmoor National Park |
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Civil Parish | Dartmoor Forest |
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District | West Devon |
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Ecclesiastical Parish | LYDFORD |
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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
- National Monuments Record: SX66NW72
- National Record of the Historic Environment: 1063445
- Old DCC SMR Ref: SX66NW/131
Monument Type(s) and Dates
- OPEN CUT (Early Medieval to Post Medieval - 1066 AD to 1750 AD)
Full description
Royal Air Force, 1946, RAF/CPE/UK/1890, 4278 (Aerial Photograph). SDV169268.
Royal Commission on the Historical Monuments of England, 1985, Aerial Photograph Project (Dartmoor) - Dartmoor Pre-NMP (Cartographic). SDV319854.
Openwork with extensive spoilheaps visible extending to SX63506705. Depicted on map overlay.
Royal Commission for the Historical Monuments of England, 1993-1998, Dartmoor Royal Forest Project, S. Probert (Report - Survey). SDV346608.
(10/11/1994) [Part of] Approximately 32ha of streamworking remains flank the left bank of the River Erme and the floodplains of three of its tributaries, Blacklane Brook, Dry Lake and Red Lake. The former workings are marked by the characteristic spoil heaps and water channels enclosed by a sharply cut cliff. In several places, most noticeably on the Blacklane Brook between SX 63066793 and SX 63026720 and at SX 63466655 on Dry Lake, are large bands of parallel linear spoil heaps most of which are revetted through at least half of the worked area appears to have been more randomly exploited or reworked at a later date. The cliffs marking their edges also remain well preserved and range in height from around 1.0m to 3.5m. Several leats (Monument HOB UID 1063683, 1063691 and 1063696) formerly feeding the sides of the streamworkings and openworks that extend up the various valley sides are visible on the surrounding hillsides and unexploited areas of floodplain.
The remains of one (Monument HOB UID 441565), possibly two (Monument HOB UID 1063737) blowing houses, seven identifiable tinners huts (Monument HOB UIDs 441565, 441635, 441638, 1063732, 1063742 and 1063753) and two other structures (Monument HOB UIDs 1063422 and 1063734) are visible within the investigated area of streamworks.
Little deposition or disturbance has occurred since the abandonment of these workings and as a consequence they constitute some of the clearest and best preserved examples of this type of tin extraction on Dartmoor.
GetMapping, 1999 - 2000, Dartmoor 1999-2000 1:1250 Aerial Photography (digital) (Aerial Photograph). SDV345751.
Stream working visible on the aerial photograph.
Newman, P., 2018, Erme Valley Survey data (GIS and Excel spreadsheet) (Cartographic). SDV361913.
Two areas of streamwork shown on survey.
Newman, P., 2018, The Upper Erme Valley, Dartmoor National Park, Devon: An Archaeological Survey, Appendix 1 (Report - Survey). SDV362921.
Approximately 6 hectares of tin streamworks following the course of Upper Dry Lake, an eastern tributary of the River Erme, between 385 metres and 450 metres above OD. 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 streamwork is between 85 metres and 32 metres wide and over 1 kilometre long. The interior working area contains the usual evidence of low linear spoil heaps, pits and channels, some of which have been reinforced by low stone revetments. The interior is also strewn with some very large granite boulders which the tinners were forced to work around and are, therefore, in situ. A large portion of the upper parts of the working are disguised by bog and rushes but a narrow channel and further workings are visible extending north. This tinwork has not been dated but , where available, documentation for tinworks elsewhere on Dartmoor would suggest a likely operational date between the 12th and 17th centuries. Three small ruined buildings survive within the confines of the tinwork (MDV116604; 116601; 116603).
Sources / Further Reading
SDV169268 | Aerial Photograph: Royal Air Force. 1946. RAF/CPE/UK/1890. Royal Air Force Aerial Photograph. Photograph (Paper). 4278. |
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SDV319854 | Cartographic: 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. |
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SDV345751 | Aerial Photograph: GetMapping. 1999 - 2000. Dartmoor 1999-2000 1:1250 Aerial Photography (digital). Digital. |
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SDV346608 | Report - Survey: Royal Commission for the Historical Monuments of England. 1993-1998. Dartmoor Royal Forest Project. Royal Commission for the Historical Monuments of England Field/Recording In. Unknown. S. Probert. |
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SDV361913 | Cartographic: Newman, P.. 2018. Erme Valley Survey data (GIS and Excel spreadsheet). GIS ShapeFile. Digital. [Mapped feature: #122466 ] |
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Associated Monuments
MDV5160 | Related to: Erme Pits Hill, Blacklane Mire, Middle Mire and Red Lake streamworks (Monument) |
MDV24810 | Related to: Line of trial pits north-east of Dry Lake, Dartmoor Forest (Monument) |
MDV24809 | Related to: Openwork north of Middle Mire (Monument) |
MDV28955 | Related to: Streamwork at Red Lake to the east of River Erme, Dartmoor Forest (Monument) |
MDV116602 | Related to: Tinners' building 200 metres south-east of Dry Lake Ford, Lydford (Building) |
MDV116604 | Related to: Tinners' building at Dry Lake Ford (Building) |
MDV116601 | Related to: Tinners' building at Dry Lake, Lydford (Building) |
MDV116603 | Related to: Tinners' building at Middle Mire, Lydford (Building) |
MDV116605 | Related to: Tinners' building at Red Lake, Lydford (Building) |
MDV126702 | Related to: Tinners building east of Dry Lake (Monument) |
Associated Finds: none recorded
Associated Events
- EDV8082 - Survey of the Upper Erme Valley
- EDV8409 - Dartmoor Royal Forest Project
Date Last Edited: | Aug 22 2023 4:07PM |
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