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Summary

Irregularly shaped pits, cuttings and mounds, interpreted as evidence of a possible medieval or post-medieval alluvial tin streamworks, are visible as earthworks on visualisations derived from lidar data captured between 1998 and 2017. The streamworks had probably passed out of use by the mid-19th century, by which time the area is shown as woodland.

Location

Protected Status: none recorded

Other References/Statuses: none recorded

Monument Type(s) and Dates

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

Full description

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

The earthworks do not correspond with any features of cuttings, pits or mounds in this location.

Environment Agency, 1998-2017, LiDAR DTM data (1m resolution) EA: South Devon Coast to Dartmoor, LIDAR SX5263; SX5363 Environment Agency DTM 01-JAN-1998 to 31-MAY-2017 (Cartographic). SDV361470.

Earthworks of irregularly shaped pits, cuttings and mounds are visible.

Hegarty, C., Knight, S. and Sims, R., 2019-2020, The South Devon Coast to Dartmoor Aerial Investigation and Mapping Survey. Area 2, Avon Valley to Plymouth (AI&M, formerly NMP) (Interpretation). SDV362982.

Irregularly shaped pits, cuttings and mounds are visible as earthworks on visualisations derived from lidar data captured between 1998 and 2017. The earthworks occupy an area of circa 1.25 hectares of floodplain along the eastern side of the River Plym. The earthworks do not correspond with any pit or mound features in this location on the mid-19th century Parish Tithe Map, or on later available historic maps, which show this area as comprising woodland. Their character and form support the interpretation they represent the extractive pits, stream channels and associated spoil heaps of a possible medieval or post-medieval alluvial tin streamworks which had passed out of use by the mid-19th century. Water used in the washing and processing of the tin-ore was probably sourced from the River Plym to the north and west, via a series of leats. The working face of the streamworks is possibly visible as a sharp scarp along the eastern edge of the earthworks. The earthworks are not visible on other available aerial imagery owing to dense tree cover.

Sources / Further Reading

Associated Monuments

Associated Finds: none recorded

Associated Events

• EDV8098 - The South Devon Coast to Dartmoor Aerial Investigation and Mapping (formerly NMP) Survey, Area 2, Avon Valley to Plymouth (Ref: ACD2040)

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