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HER Number:MDV108245
Name:Original course of the River Yealm at Blachford


During the early-mid 19th century the river was altered at this location to create a large fishpond for Blachford Manor. The original course of the River Yealm is depicted on the Tithe map.


Grid Reference:SX 611 598
Map Sheet:SX65NW
Admin AreaDartmoor National Park
Civil ParishCornwood
DistrictSouth Hams
Ecclesiastical ParishCORNWOOD

Protected Status: none recorded

Other References/Statuses: none recorded

Monument Type(s) and Dates

  • WATERCOURSE (XVIII to XIX - 1800 AD to 1830 AD (Pre))

Full description

Devon County Council, 1838-1848, Tithe Mosaic, approximately 1838-1848 (Cartographic). SDV349431.

The Tithe map shows the new fish pond and also the old course of the river at this site, which includes quite a sinuous curve at the southern end of the pond.

Ordnance Survey, 1880-1899, First Edition Ordnance 25 inch map (Cartographic). SDV336179.

Late 19th century historic map shows the fish pond with no sign of the old course of the river remaining.

Ordnance Survey, 2014, MasterMap (Cartographic). SDV355681.

River once curved around significantly in the region of the weir and modern pump house. Appears to have been diverted at the point of the footbridge which lies 86 metres south of the modern pump house.

Sources / Further Reading

SDV336179Cartographic: Ordnance Survey. 1880-1899. First Edition Ordnance 25 inch map. First Edition Ordnance Survey 25 inch Map. Map (Digital).
SDV349431Cartographic: Devon County Council. 1838-1848. Tithe Mosaic, approximately 1838-1848. Digitised Tithe Map. Digital. [Mapped feature: #67626 ]
SDV355681Cartographic: Ordnance Survey. 2014. MasterMap. Ordnance Survey Digital Mapping. Digital.

Associated Monuments

MDV49665Related to: Fishpond at Blachford, Cornwood (Monument)
MDV127065Related to: Footbridge south-west of Blachford Manor (Monument)
MDV102899Related to: Weir at Blachford, east of Cornwood (Monument)
MDV102900Related to: Weir north of Blachford fish pond, Cornwood (Monument)

Associated Finds: none recorded

Associated Events: none recorded

Date Last Edited:Dec 9 2019 1:17PM