Atlas of Hillforts of Britain and Ireland

EN0101 Perborough Castle, Berkshire (Compton Castle)

LiDAR 1m DTM Hillshade

LiDAR 1m DTM Hillshade

Satellite Imagery

Satellite Imagery

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HER:  West Berkshire MWB1453 (None)

NMR:  SU 57 NW 4 (237273)

SM:  1006973

NGR:  SU 52052 77966

X:  452052  Y:  177966  (OSGB36)

Summary

On Cow Down, Compton, an almost circular univallate hillfort of approximately 6ha located on a SE facing spur overlooking the upper reaches of the River Pang. Deep ploughed since World War II and until recent times, the ramparts are now ploughed-down except in the N but the form of the hillfort is preserved in the field boundaries. On the northern side they consist of a bank, ditch, and possible counterscarp. The only known contemporary entrance lies in the N. The presence of features within the interior is unknown. The interior underwent a geophysical survey as part of the Wessex Hillforts Project (Payne et al. 2006) which showed little evidence for intensive or prolonged settlement, but signals from the area of the bank and the fill of the ditch suggested the presence of a considerable quantity of burnt material. Pottery sherds of a 6th-5th century date were recovered from ploughsoil within the interior in the 1930's and 60's but the site is unexcavated and otherwise undated. Immediately to the N are extensive remains of coaxial field systems. Recorded on the 1808 OS East Ilsley drawing.

Status

Citizen Science:  

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -139322  Y:  6709896  (EPSG: 3857)

Longitude:  -1.2515492013768634  Latitude:  51.4981938089108  (EPSG:4326)

Country:  England; None

Current County or Unitary Authority:  West Berkshire

Historic County:  Berkshire

Current Parish/Community/Council/Townland:  Compton; Hampstead Norreys

Monument Condition

Upstanding but almost destroyed. Best preserved in the N where it lies in unploughed grassland.

Condition:
Extant  
Cropmark  
Likely Destroyed  

Land Use

None

Current Use:
Woodland  
Commercial Forestry Plantation  
Parkland  
Pasture (Grazing)  
Arable  
Scrub/Bracken  
Bare Outcrop  
Heather/Moorland  
Heath  
Built-up  
Coastal Grassland  
Other  

Landscape

Hillfort Type

A contour fort lying at 137m OD on an E-facing spur overlooking the upper reaches of the River Pang. Wood & Hardy (1962: 53) noted that its position overlooked two early routeways. The first leading to the Pang Valley-Churn gap which breaches the main escarpment of the Downs towards the Vale of the White Horse, and the 'West Ridgeway' which runs between the Thames crossings near Streatley and the Kennet crossing near Newbury.

Type:
Contour Fort  
Partial Contour Fort  
Promontory Fort  
Hillslope Fort  
Level Terrain Fort  
Marsh Fort  
Multiple Enclosure Fort  

Topographic Position

Position:
Hilltop  
Coastal Promontory  
Inland Promontory  
Valley Bottom  
Knoll/Hillock/Outcrop  
Ridge  
Cliff/Plateau-edge/Scarp  
Hillslope  
Lowland  
Spur  

Dominant Topographic Feature:  On the E-facing side of a spur

Aspect:
North  
Northeast  
East  
Southeast  
South  
Southwest  
West  
Northwest  
Level  

Altitude:  137.0m

Boundary

Parish boundary between Compton and Hampstead Norreys runs to the S of the hillfort

Boundary Type:  Parish/Townland


Dating Evidence

Surface finds of pottery suggests an early Iron Age 6th-5th century date, falling out of use by the middle Iron Age.

Reliability:  C - Low

Principal Activity:
Pre 1200BC  
1200BC - 800BC  
800BC - 400BC  
400BC - AD50  
AD50 - AD400  
AD400 - AD 800  
Post AD800  
Unknown  

Other Activity:
Pre Hillfort:   None
Post Hillfort:   None

Evidence:
Artefactual:   None

Investigation History

On 1808 Ordnance Survey drawing of East Ilsley, General reference in Gray (1839). Earthwork survey 1961-2 (Wood and Harding 1962), Field investigation 1964. Geophysical survey 1996 (Payne et al. 2006). Scheduled

Investigations:
1st Identified Map Depiction (1808):   Shown as Compton Castle on East Ilsley drawing, BL OSD 158, 2 inch to the mile
1st Identified Written Reference (1839):   None
Other (1964):   Field investigation
Geophysical Survey (1996):   Wessex Hillforts Project (Payne et al. 2006)
Earthwork Survey (None):   Reading University (Wood and Harding 1962)
Other (None):   Scheduled

Interior Features

The interior was deep ploughed during World War II and there is no surface evidence for intensive settlement. 32 sherds of Early Iron Age Pottery were recovered from plough soil in the 1930s; a few more were recovered in the 1960s. Possible quarry hollows. Pits shown by geophysical survey.

Water Source

None

Source:
None  
Spring  
Stream  
Pool  
Flush  
Well  
Other  

Surface

Five circular hollows are probably marl pits.

Interior Features (Surface):
No Known Features  
Round Stone Structures  
Rectangular Stone Structures  
Curvilinear Platforms  
Other Roundhouse Evidence  
Pits  
Quarry Hollows  
Other  

Excavation

None

Interior Features (Excavation):
No Known Excavation  
Pits  
Postholes  
Roundhouses  
Rectangular Structures  
Roads/Tracks  
Quarry Hollows  
Other  
Nothing Found  

Geophysics

Approximately 100 positive anomolies suggest probable pits and lengths and ditch. The density and clustering of pits is similar to tthat seen at other local hillforts where occupation was short-lived and restricted to the early Iron Age (Payne et al. 2006)

Interior Features (Geophysics):
No Known Geophysics  
Pits  
Roundhouses  
Rectangular Structures  
Roads/Tracks  
Quarry Hollows  
Other  
Nothing Found  

Finds

32 sherds of Early Iron Age Pottery were recovered from plough soil in the 1930s; a few more were recovered in the 1960s.

Interior (Finds):
No Known Finds  
Pottery  
Metal  
Metalworking  
Human Bones  
Animal Bones  
Lithics  
Environmental  
Other  

Aerial

None

Interior Features (Aerial):
APs Not Checked  
None  
Roundhouses  
Rectangular Structures  
Pits  
Postholes  
Roads/Tracks  
Other  

Entrances

A simple gap entrance in the N

Total Number of Breaks Through Ramparts:  
None:   None

Number of Possible Original Entrances:  
2:   None

Guard Chambers:  

Chevaux de Frise:  

Entrances:
1. Simple Gap (North):   None

Enclosing Works

A nearly circular ditch between two banks; the outer bank possibly a counterscarp. The defences around the southern and western sides of the site have been largely ploughed out. On the northern side the defences consist of a bank, ditch, and possible counterscarp. Gray (1839) reported that a farmer had dug up several loads of great sarsen stones that had been laid regularly over a layer of flints. Augering had indicated that similar stones may have been present along part of the bank. Gray also reported that some sarsens from the site were broken up and used to repair roads. Possible gang working.

Enclosed Area:
Area 1:   5.7ha.
Total:   5.7ha.

Total Footprint Area:  6.0ha.

Ramparts

None

Multi-period Enclosure System:
✗   Wood & Hardy (1962:55) noted the presence of a large sarsen stone near the south west perimeter and speculated that the ramparts, might have been faced with sarsens.

Ramparts Form a Continuous Circuit:
✗   A nearly circular ditch between two banks; the outer bank may be a counterscarp.The defences around the southern and western sides of the site have been largely ploughed out. On the northern side the defences consist of a bank, ditch, and possible counterscarp.

Number of Ramparts:  
NE Quadrant:   1
SE Quadrant:   0
SW Quadrant:   0
NW Quadrant:   1
Total:   1

Morphology

Current Morphology:
Partial Univallate  
Univallate  
Partial Bivallate  
Bivallate  
Partial Multivallate  
Multivallate  
Unknown  

Detailed Morphology:
Partial Univallate  
Univallate  
Partial Bivallate  
Bivallate  
Partial Multivallate  
Multivallate  

Surface Evidence

Magnetic signals from the area of the bank and the fill of the ditch were high suggesting the presence of a considerable quantity of burnt material. (Payne et al. 2006, 44). Across the bank it was observed that the magnetic signal was double peaked, possibly indicating the presence of discrete parallel structures within the ramparts. It is suggested that the rampart defences may have been burnt.

Enclosing Works (Surface):
None  
Earthen Bank  
Stone Wall  
Rubble  
Wall-walk  
Evidence of Timber  
Vitrification  
Other Burning  
Palisade  
Counter Scarp Bank  
Berm  
Unfinished  
Other  

Excavated Evidence

None

Enclosing Works (Excavation):
None  
Earthen Bank  
Stone Wall  
Murus Duplex  
Timber-framed  
Timber-laced  
Vitrification  
Other Burning  
Palisade  
Counter Scarp Bank  
Berm  
Unfinished  
No Known Excavation  
Other  

Other

Gang Working:
✓   Enclosing banks appear to have been created from a series of straight lengths with angular changes in alignment and possibly dictated by the overlying adjacent field systems.

Ditches:
✓   None

Number of Ditches:  1

Annex:
✗   None

References

Cotton, M.A. 1962, Berkshire Hillforts, Berkshire Archaeol J., vol. 60, pp. 30-52

Gray, E. 1839. The History and Antiquities of Newbury and Its Environs: Including Twenty-eight Parishes, Situate in the County of Berks., Hall and Marsh.

Hewett, W. 1844. The History & Antiquities of the Hundred of Compton, Berks., John Snare.

Page, W. 1906. The Victoria History of the Counties of England: Berkshire, London: Constable.

Payne, A., Corney, M. and Cunliffe, B.W. 2006, Wessex Hillforts Project - extensive survey of hillfort interiors in central southern England. London: English Heritage, 39-44

Underhill, F.M. 1946. Notes on Recent Antiquarian Discoveries in Berkshire III. Berkshire Archaeol J. 49, 51

Wood, P. and Hardy, J.R. 1962, Perborough Castle and its field system, Berkshire Archaeol J., 60, 53-60



Terms of Use

This work is licensed under CC BY-SA 4.0 and should be cited as:

Lock, Gary and Ralston, Ian. 2024. Atlas of Hillforts of Britain and Ireland. Available at: https://hillforts.arch.ox.ac.uk


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