MSO8387 - Roman fort at Rainsbury, Upton (Monument)
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Type and Period (1)
- None recorded
The remains of a large rectangular platform are visible on aerial photographs. The platform measures 95 metres by 65 metres and is surrounded by a broad ditch and a slight bank. The features had been partially ploughed on the 1977 photographs and showed partially as cropmarks.  None of the above features are marked on the Ordnance Survey First Edition map, but one of the buildings of the present farm is marked as 'Rainsberry House'. [2,3] The platform sits on top of a hill at 168 metres above Ordnance Datum, to the southwest of Rainsbury Farm. Rainsbury House sits at the north east corner of the platform. The platform is centred at SS99002915, and is cut by the field boundaries marked on maps from the 1st edition of 1891 to the latest map. The enclosure could be a post medieval garden, but is rather large for this.  The rectangular enclosure at Rainsbury was surveyed at 1:1000 scale in July 1998 by staff of RCHME's Exeter Office. The date and function of the enclosure are uncertain. However, its strong spur end location and precise shape suggest that it may be Roman. [4-8] A rectangular enclosure was identified on aerial photographs, aligned northeast to southwest, with a bank and external ditch. A possible outer line is visible which is incorporated in field boundaries in some places. Since the aerial photograph was taken (1977) the northeast end has been severely damaged by the construction of a large farmyard and buildings. The rest of the earthwork survives well, although ploughed in the past. The enclosure measures at least 100 metres by 67 metres wide with an outward facing scarp between 1.2 and 2 metres high. The inner face of the rampart can be discerned on the northwest and southwest sides. Also on the southwest side, an external ditch is evident 0.4 metres deep, with a counterscarp bank running round to the northwest side, where it is followed by a field boundary. The counterscarp can be followed to the southeast as well before it fades out. No entrances are visible and the interior is level and featureless. Although possibly a prehistoric enclosure, the regularity of the site and its setting suggests a Roman fort.  Geophysical survey was undertaken over the area of the earthwork at Rainsbury Farm. The survey showed that there are a series of banks and ditches forming two distinct, and very likely defensive, structures. There may be the remains of a third sequence of linear structures lying between these two. The monument continues into the field west of the farm buildings and south of Eastmoor Lane, and may extend into the field north of Eastmoor Lane.  A gradiometer survey was undertaken to the north of the previously surveyed 'playing card' shaped earthwork, so that the surveys could be combined. The two gradiometer surveys have demonstrated that the inner 'playing card' shaped structure is defined by three concentric bank and ditch sets. Surrounding this is what is likely to be a further sequence of three bank and ditch sets enclosing an area of 5.6 hectares. To the north of the outer ditch and bank sequence are a number of anomalies that are suggestive of field patterns and one possible circular structure, which may represent a phase of settlement distinct from that of the modern hamlet.  Works to prepare the site of an agricultural barn at SS 9904 2924 were undertaken at some time between 1994 and 1998. During these works, the farmer reports that two or three large ditches, 2 to 3 metres wide and 2 metres deep, were present. They were excavated with a machine. The ditches had a soft fill and so were backfilled with stone to allow the construction of the barn. No archaeological material was noted.  This record was enhanced as part of the National Record of the Historic Environment to Exmoor National Park Historic Environment Record data transfer project. 
- <1> SMO4068 Aerial photograph: Various. Various. Vertical Aerial Photograph. NMR MAL/77037 0207 (26 November 1977).
- <2> SEM6703 Map: Ordnance Survey. 1854-1901. County Series; 1st Edition 25 Inch Map. 1:2500.
- <3> SMO6671 Collection: Dyer, C. and Winton, H.. 1998. RCHME: Brendon Hills Mapping Project, SS92NE.
- <4> SMO5111 Unpublished document: Royal Commission on the Historical Monuments of England. Field Investigators Comment. R Wilson-North and H Riley, 14 July 1998.
- <5> SMO7285 Technical drawing: Riley, H. and Wilson-North, R.. 1998. Rainsbury/pencil survey. Unknown. Permatrace. Pencil.
- <6> SMO7284 Technical drawing: Wilson-North, R. and Riley, H.. 1998. Rainsbury/ink survey. Unknown. Permatrace. Pen and Ink.
- <7> SMO5831 Collection: RCHME Exeter. 1993-1999. Exmoor Project.
- <8> SEM6891 Report: Wilson-North, R.. 1998. A Rectangular Enclosure at Rainsbury, Upton, West Somerset. RCHME.
- <9> SEM6824 Report: Dean, R.. 2007. An Archaeological Geophysical Survey: Rainsbury Farm, Bridge End, Upton, Somerset.
- <10> SEM6963 Report: Dean, R.. 2008. Rainsbury Farm, Bridge End, Upton, Somerset: Results of an Archaeological Gradiometer Survey.
- <11> SEM7355 Report: Dyer, C.A.. 1998. National Mapping Programme: The Brendon Hills Mapping Project, Devon and Somerset. RCHME Swindon. P.22.
- <12> SEM1 Verbal communication: Various. Various. ENPA archaeologist field visit. Shirley Blaylock, 5 January 2018.
- <13> SEM7987 Digital archive: Historic England. Various. National Record of the Historic Environment (NRHE) entry. 1133864, Extant 4 April 2022.
|Grid reference||Centred SS 9905 2925 (352m by 396m) Surveyed|
|Civil Parish||UPTON, WEST SOMERSET, SOMERSET|
Related Monuments/Buildings (1)
Related Events/Activities (5)
- Site Event: 1994: UW - Rainsbury Farm (Ref: 6/36/94/102) (EEM14713)
- Event - Survey: 1996: TS - East Exmoor Project (EMO6759)
- Event - Intervention: 1998: AP - Brendon Hills National Mapping Project (EMO6851)
- Event - Survey: 2007: GS - Rainsbury Farm (EEM14711)
- Event - Survey: 2008: GS - Rainsbury Farm (EEM14712)
Related Articles (1)
External Links (1)
- http://www.pastscape.org.uk/hob.aspx?hob_id=1133864 (Original Monarch entry: 1133864)
- National Monuments Record reference: SS 92 NE59
- National Park
- NBR Index Number: 1182414
- NBR Index Number: 1182415
- NRHE HOB UID (Pastscape): 1133864
- Somerset SMR PRN: 35844
Record last edited
Apr 4 2022 4:56PM
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