NHER 67883 (Monument record) - Undated palaeochannels and late post-medieval field boundaries

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Summary

A geophysical survey of this area in 2021/2022 identified little of potential archaeological significance. Although a number of straight linear anomalies were recorded these all correspond with former late post-medieval field boundaries. A series of much more sinuous linear anomalies were probably mostly of natural origin, although it is possible that some represented more archaeologically-significant remains. Other responses of note included a small circular cluster of anomalies, although these are regarded as being of uncertain origin. Subsequent trial trenching in 2025 confirmed that the sinuous linear anomalies were associated with naturally-formed palaeochannels. Several ditches were also recorded, all of which were most likely post-medieval in date.

Protected Status/Designation

  • None recorded

Location

Map sheet TF41NE
Civil Parish WALPOLE, WEST NORFOLK, NORFOLK

Map

April 2021-January 2022. Geophysical Survey.
Magnetometer survey of proposed development site.
This survey identified little of definite archaeological significance.
Although a number of straight linear anomalies were recorded these all correspond with former field boundaries depicted on the Ordnance Survey First Edition map (S1). The small number of potentially archaeologically-significance responses include a pair of sinuous linear anomalies in the north-west corner of the larger field. Various other sinuous linear anomalies were almost certainly natural in origin – representing former water channels.
Responses of uncertain origin include a small circular cluster of anomalies in the south-east corner of the northern field. These may represent some form of small enclosure, although their anomorphous nature and proximity to a large area of magnetic disturbance means this suggestion is only tentative.
Numerous ferrous anomalies were probably caused by material on or near the ground surface – most likely modern debris. Larger areas of magnetic disturbance were caused by a number of electricity pylons.
See report (S2) for further details.
P. Watkins (HES), 31 December 2023.

December 2025. Trial Trenching.
Evaluation of proposed development site.
A total of 21 trenches were excavated, the majority of which were placed to target linear anomalies recorded by the preceding geophysical survey. The more sinuous responses were all shown to be associated with naturally-formed palaeochannels, which were filled with apparently sterile, laminated deposits. A number of ditches were also encountered. These produced no dating evidence but were all most likely post-medieval – either corresponding with, or being similar aligned to former field boundaries shown on the Ordnance Survey First Edition map (S1). The only other feature of note was a pit or ditch containing a modern sheep or goat burial.
Samples taken from several of the excavated features produced occasional charcoal flecks and charred seeds but the plant macrofossils present consisted largely of de-watered root/stem fragments.
See report (S3) for further details.
P. Watkins (HES), 27 July 2026.

  • --- Secondary File: Secondary File.
  • --- Unpublished Contractor Report: Lycett-Smith, H. 2026. Gunthorpe Road Solar Farm, Land South of Gunthorpe Road, Walpole Marsh, Wisbech, Norfolk and Lincolnshire. Archaeological Trial Trenching. Rubicon Archaeology. RR1145/5.
  • <S1> Map: Ordnance Survey. 1884-1891. Ordnance Survey Map. Six inches to the mile. First Edition. 1:10,560. Lincolnshire CXLIV.SE (Surveyed 1886-1887, Published: 1887).
  • <S2> Unpublished Contractor Report: Trace, A. 2022. Gunthorpe Road Solar Farm, Walpole March, Norfolk. Geophysical Survey. Archaeological Services WYAS. 3712.
  • PLANT REMAINS (Unknown date)
  • PLANT REMAINS (Post Medieval - 1540 AD to 1900 AD)

Related NHER Records (0)

Record last edited

Jul 27 2026 4:49PM

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