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Summary

Numerous prospecting pits or shafts of probable post-medieval date are visible on aerial photographs of the 1960s and 1980s as earthworks cut into or immediately adjacent to an extensive area of medieval to post-medieval tin streaming on Crownhill Down. The earthworks have probably been destroyed by modern open cast mining.

Location

Protected Status: none recorded

Other References/Statuses: none recorded

Monument Type(s) and Dates

• MINE SHAFT (Early Medieval to Post Medieval - 1066 AD to 1750 AD)
• PROSPECTING PIT (Early Medieval to Post Medieval - 1066 AD to 1750 AD)

Full description

Royal Air Force, 1964, RAF/58/6399, RAF/58/6399 F66 0381-0382 02-JUL-1964 (Aerial Photograph). SDV363068.

Numerous circular pits are visible as earthworks.

Royal Commission for the Historical Monuments of England, 1978, NMR 1247, NMR 1247/138-139 31-MAY-1978 (Aerial Photograph). SDV363091.

Circular pits are visible as earthworks.

Devon County Council, 1985, DAP 5501, DAP 5501/08A 23-JUL-1985 (FI) (Aerial Photograph). SDV354834.

Numerous circular pits are visible as earthworks.

Environment Agency, 1998-2017, LiDAR DTM data (1m resolution) EA: South Devon Coast to Dartmoor, LIDAR SX5659 Environment Agency DTM 01-JAN-1998 to 31-MAY-2017 (Cartographic). SDV361470.

Numerous circular pits are visible as earthworks.

Google, 2019, Google Earth Pro, EARTH.GOOGLE.COM 22-JUN-2018 ACCESSED 04-JUL-2019 (Aerial Photograph). SDV363088.

The pits have been destroyed by the expansion of open cast mining.

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.

Numerous pits are visible on aerial photographs of the 1960s and 1980s as earthworks between 3 and 12m diameter cut into, or immediately adjacent to, an extensive area of medieval to post-medieval tin streaming on Crownhill Down. The smaller pits are most densely concentrated towards the eastern end of the streamworks. The largest pits of circa 10-12m are visible concentrated along the northern edge of the streamworks around circa SX56675911 and SX56395951. Some are surrounded by substantial spoil mounds. These may simply be larger prospecting pits or could include evidence of later shafts or shafts contemporary with the streamworks exploiting deeper deposits.
The earthworks remain clearly visible on images derived from lidar data captured between 1998 and 2014 but have subsequently been largely destroyed by modern open cast mining.

Sources / Further Reading

Associated Monuments: none recorded

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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