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HER Number:MDV122910
Name:Mica dams on the northern side of Greenhill clay works, Ugborough Moor

Summary

Three mica dams on the northern side of Greenhill clay works on Ugborough Moor. This clay works was operated by the China Clay Corporation from about 1913 to 1932 to refine the clay from Redlake Pit (MDV107445), 1.3 kilometres to the north. The dams run in a sequence down the slope to the west of the mica drags (MDV5169).

Location

Grid Reference:SX 649 657
Map Sheet:SX66NW
Admin AreaDartmoor National Park
Civil ParishUgborough
DistrictSouth Hams
Ecclesiastical ParishUGBOROUGH

Protected Status: none recorded

Other References/Statuses: none recorded

Monument Type(s) and Dates

  • CHINA CLAY WORKS (Constructed, Early 20th Century - 1913 AD to 1932 AD (Between))

Full description

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

Features shown on survey.

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

Three mica dams on the northern side of Greenhill clay works on Ugborough Moor. This clay works was operated by the China Clay Corporation from about 1913 to 1932 to refine the clay from Redlake Pit (MDV107445), 1.3 kilometres to the north.
The dams run in a sequence down the slope to the west of the mica drags (MDV5169). Each has an earthwork embankment on the lower side, of between 1.0 metre and 2.0 metres high, to form artificial lagoons, behind which the sand and water were washed in from the drags via linear ditches. The sand settled as the water drained away leaving an approximately flat surface, level with the top of the dam, now turf covered and boggy.
The largest of the three is the central one which covers 50 metres by 52 metres. The smallest, at the bottom of the sequence is 52 metres by 22 metres. Traces of the linear drains that fed the lagoons survive, now silted, running from the west side of the mica drag.

Sources / Further Reading

SDV361913Cartographic: Newman, P.. 2018. Erme Valley Survey data (GIS and Excel spreadsheet). GIS ShapeFile. Digital. [Mapped feature: #119004 ]

Associated Monuments

MDV107445Part of: Redlake China Clay works, Dartmoor Forest (Monument)
MDV5169Related to: Deserted buildings 1.2 kilometres south-east of Red Lake, Ugborough (Monument)

Associated Finds: none recorded

Associated Events

  • EDV8082 - Survey of the Upper Erme Valley

Date Last Edited:May 5 2020 1:53PM