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HER Number:MDV106854
Name:Leats in Redwater Valley, above Challacombe

Summary

Complex of 20th century leats connected with the extraction of alluvial tin at Redwater. The leats are visible as U-shaped channels of approximately 1 metre wide and 0.8 metres deep.

Location

Grid Reference:SX 688 789
Map Sheet:SX67NE
Admin AreaDartmoor National Park
Civil ParishManaton
Civil ParishWidecombe in the Moor
DistrictTeignbridge
Ecclesiastical ParishMANATON

Protected Status: none recorded

Other References/Statuses

  • National Monuments Record: 915277

Monument Type(s) and Dates

  • LEAT (XX - 1920 AD to 1927 AD (Between))

Full description

Pattison, P., 1990, Field investigation, 15/06/1990 (Report - Survey). SDV356547.

SX 6884 7900. A complex of leats in low-lying marshy ground around the West Webburn River south of Challacombe Down. The main elements are:
Leat 1: A U-shaped channel 1.0 metre wide and 0.8 metres deep with traces of upcast "banks" on both sides. Taken off a bend in the west branch of the river at SX 6880 7915, it runs south-south-east for 60 metres then curves east back towards the river. Before the river it divides into a north fork ending against the bank but possibly originally laundered across to serve buddles SX 67 NE 96 and a south fork running east-south-east for 35 metres before itself dividing: and east fork appears to have crossed the west branch of the river running south to end at the east branch of the river at SX 6894 7886. A west fork takes a sweeping curve to head south-west, crossing leat 2 at SX 6884 7900 and ending in marsh at SX 6880 7895.
Leat 2: Similar to but slightly larger than 1. It starts at SX 6882 7909 and its surviving course south of here is secondary to leat 1. However, it appears to have been cut earlier; leat 1's east-south-east course from this point being a diversion. It follows a straightish course south to the field wall at SX 6882 7873.
All the leats cut through earlier streamworking spoil mounds and are almost certainly a product of reworking alluvial tin deposits by the Torr Trust Ltd. Co. and others between 1925 and the 1930's


Agricultural Development Advisory Service, 1991, Challacombe Farm Postbridge, Devon (Duchy Farms Project), 33, Map D1 (Report - Assessment). SDV356546.

Two leats, now dry, took water from the West Webburn River. They have u-shaped channels, 0.8 metres to 1.2 metres wide and 0.8 metres deep, with traces of upcast on both sides. One supplied a tin treatment plant as well as streamworks.


English Heritage, 2005, Industrial Survey Information (Report - Survey). SDV346396.

Depicted on the survey data: The remains of 20th century leats connected with the extraction of alluvial tin. The leats are visible as U-shaped channels of approximately 1 metre wide and 0.8 metres deep.


GeoInformation Group Ltd, 2010, 1:625 2010 Colour (12.5cm resolution) (Aerial Photograph). SDV346026.

Leats visible on aerial photograph.

Sources / Further Reading

SDV346026Aerial Photograph: GeoInformation Group Ltd. 2010. 1:625 2010 Colour (12.5cm resolution). 2010 Aerial Photographs. Digital. [Mapped feature: #66364 ]
SDV346396Report - Survey: English Heritage. 2005. Industrial Survey Information. English Heritage. Digital.
SDV356546Report - Assessment: Agricultural Development Advisory Service. 1991. Challacombe Farm Postbridge, Devon (Duchy Farms Project). Agricultural Development Advisory Service. A3 Comb Bound. 33, Map D1.
SDV356547Report - Survey: Pattison, P.. 1990. Field investigation. Royal Commission for the Historical Monuments of England Archaeological Survey. Digital. 15/06/1990.

Associated Monuments

MDV106851Related to: Buddles in Redwater Valley, above Challacombe (Monument)
MDV6010Related to: Field system at Challacombe Down (Monument)
MDV106846Related to: Streamworks west of Challacombe Down (Monument)
MDV53013Related to: Tin mill in Redwater Valley, above Challacombe (Monument)
MDV106852Related to: Wheelpit in Redwater Valley, above Challacombe (Monument)

Associated Finds: none recorded

Associated Events: none recorded


Date Last Edited:Apr 29 2014 11:03AM