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Summary

Earthworks of pits and banks, probably the remains of a post-medieval or 19th century mine shaft, are visible on aerial photographs and visualisations derived from lidar data captured in 2010 and 2013. The workings had probably passed out of use by the late-19th century.

Location

Protected Status: none recorded

Other References/Statuses: none recorded

Monument Type(s) and Dates

• EXTRACTIVE PIT (Post Medieval to XIX - 1540 AD to 1900 AD (Between))
• MINE SHAFT (Post Medieval to XIX - 1540 AD to 1900 AD (Between))
• SPOIL HEAP (Post Medieval to XIX - 1540 AD to 1900 AD (Between))

Full description

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

The earthworks correspond with a dashed-line feature.

Royal Air Force, 1946 - 1949, Royal Air Force Aerial Photographs (Aerial Photograph). SDV342938.

Earthworks of a bank and possible hollow are visible.

Environment Agency, 2000-2019, LiDAR DTM data (1m resolution) EA: Tamar Aerial Survey project area, LIDAR Environment Agency LAST RETURN 17-JAN-2010 (Cartographic). SDV363954.

Earthworks of a sub-oval bank within an irregularly shaped hollow are visible.

Cornwall Archaeological Unit, 2001-2002, Tamar Valley National Mapping Programme Transcriptions and Database Records, RAF/540/483/4242-3 (Interpretation). SDV346287.

Transcriptions of an earthwork pit and associated spoil heap visible on aerial photographs RAF/540/483/4242-3 correspond with a database record of a post-medieval mine shaft to the south-west of Broadwell Farm. The earthworks were probably outliers of the George and Charlotte Mine, the closest elements of which sit less than 200m to the south-west.

NERC, 2013, LiDAR DTM data (1m resolution) Tellus: Tamar Aerial Survey project area, LIDAR Tellus LAST RETURN 01-JUL-2013 to 31-AUG-2013 (Cartographic). SDV363955.

Earthworks of a sub-oval bank within an irregularly shaped hollow are visible.

Hegarty, C., Knight, S. and Sims, R., 2016, Backlog Recording of the Tamar Valley National Mapping Programme Survey (Personal Comment). SDV359374.

The aerial photograph reference given in the Tamar Valley NMP transcription attributes is incomplete; the date of the photograph is not included.

Hegarty, C., Knight, S. and Sims, R., 2020-2021, Tamar/Lidar; A Single Source Approach to Landscape Survey and Socially Distanced Community Archaeology Area 1 (AI&M project) (Interpretation). SDV363945.

Earthworks of a prominent sub-oval bank, circa 14 metres long by 10 metres wide, within a shallow, irregularly shaped hollow, circa 35 metres long by 25 metres wide, are visible on digital 1940’s aerial photographs and visualisations derived from lidar data captured in 2010 and 2013.
The earthworks correspond with a dashed-line feature on the late-19th century First Edition Ordnance Survey map. They are interpreted as a possible extractive pit or shaft and spoil heap associated with post-medieval or 19th century mining. The mine workings had probably been abandoned by the late-19th century.
The earthworks correspond with a pit and banked feature recorded from aerial photographs during the Tamar Valley NMP project. These features have been re-transcribed during this survey from lidar data which has provided additional clarity and detail as well as improved spatial accuracy, but which was unavailable to the previous survey.

Sources / Further Reading

Associated Monuments: none recorded

Associated Finds: none recorded

Associated Events

• EDV6911 - Tamar Valley National Mapping Programme
• EDV8345 - Tamar/Lidar; A Single Source Approach to Landscape Survey and Socially Distanced Community Archaeology Area 1 (AI&M) (Ref: ACD2380)

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