NHER 37650 (Monument record) - Prehistoric, post-medieval and undated remains

September 2002. Desk-based Assessment.
Assessment of proposed mineral extraction area.
Remains of Roman date may extend across the assessment area, particularly given the proximity of a possible temple site immediately to the east (NHER 9743). For the medieval period there is little to suggest that Mangreen was anything but small and marginal, despite its perceived importance.
See report (S1) for further details.
A. Cattermole (NLA), 7 January 2009.

January 2003. Geophysical Survey.
Magnetic susceptibility survey followed by detailed magnetometry in two targeted areas (Areas 5-6).
Most of the area surveyed appeared to contain anomalies associated with recent agricultural activity.
See report (S2) for further details.
A. Cattermole (NLA), 7 January 2009. Amended by P. Watkins (HES), 27 May 2015.

January 2003. Systematic Fieldwalking and Metal-detecting Survey.
Field survey of proposed mineral extraction area (Area 2).
A small assemblage of prehistoric worked flints was recovered. The bulk of this material was of later prehistoric date, although there were some earlier pieces, including and Early Neolithic laurel leaf point and several blade cores of Early Neolithic or earlier date.
The bulk of the remaining finds were of probable post-medieval date, including pottery sherds, roof tiles, fragments of clay tobacco pipe and a gun flint.
Other finds included potentially prehistoric burnt flints, an iron nail and a ‘worked stone fragment’ of unspecified type and date.
It is noted that a small number of potentially late medieval sherds were also recovered during this work, although it is unclear exactly where these were found.
See report (S3) for further details. The results of this work are also summarised in (S4).
The associated archive has been deposited with the Norwich Castle Museum (NWHCM : 2007.305).
Amended by P. Watkins (HES), 23 January 2023.

August-October 2011. Trial Trenching.
Evaluation of proposed aggregate extraction area (Field 1; Trenches 1-17).
The 17 trenches excavated at this location revealed a small number of scattered discrete features of possible prehistoric date and a single ditch. The discrete features included a shallow circular pit in the central part of the site that contained nine handmade pottery sherds of probable Late Bronze Age/Iron Age date and a nearby pit that produced two similar handmade pottery sherds. The other finds from these features comprised a single potentially intrusive Roman sherd, a small number of animal bone fragments and a notable number of worked flints, including cores, hard hammer flakes and chips. Samples taken from their fills produced only sparse assemblages of charred plant macrofossils.
Two additional handmade pottery sherds of probable Late Bronze Age/Iron Age date were recovered from one of a pair of possible post-holes recorded in the south-east corner of the site.
The ditch was a north-to-south aligned feature that produced a small assemblage of post-medieval objects including pottery, brick and glass. This feature coincided with the line of a former field boundary depicted on the Ordnance Survey First Edition Six-inch map (S5).
There was no evidence for surviving sub-surface remains associated with a number of linear cropmarks mapped at the eastern edge of this field (part of a group recorded as NHER 52135).
See report (S6) for further details. The results of this work are also summarised in (S7).
An archive associated with this work has been deposited with Norwich Castle Museum (NWHCM : 2011.554).
See NHERs 57922, 66386 and 66663 for results of work in Fields 2-5.
Amended by P. Watkins (HES), 24 January 2023.

October 2017. Strip Map and Sample Excavation.
Stripping of relatively small area in central part of site, ahead of mineral extraction (Phase 7A).
Three ditches were exposed, including two adjacent, roughly parallel west-north-west to east-south-east aligned features, both of which produced single scraps of probable Late Bronze Age/Early Iron Age pottery. These were cut by a third, north-north-west to south-south-east aligned ditch. This feature produced several fragments of Roman tile but was almost certainly of much more recent date, coinciding with a former field boundary depicted on the Ordnance Survey First Edition Six-inch map (S5) but not an earlier tithe map of 1849 (S8).
Information from draft report. Final version awaited.
The archive associated with this work has been deposited with Norwich Castle Museum (NWHCM : 2019.197).
P. Watkins (HES), 2 February 2022.