LiDAR 1m DTM Hillshade
Satellite Imagery
LiDAR 1m DTM Hillshade
Satellite Imagery
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HER: South Gloucestershire 1567 (None)
NMR: ST 69 SE 2 (201647)
SM: 1004529
NGR: ST658927
X: 365800 Y: 192700 (OSGB36)
Bivallate inland promontory fort located on NW-facing spur of Camp Hill, Thornbury. Steep surrounding slopes, moderate along spur on SE. Features from field investigation 1970 and mapped from Environment Agency LiDar remote sensing data and aerial photographs taken in 2010. Gently sloping approach of spur from SE cut off by two ramparts and ditch, inner stronger than outer, where bank and ditch reduced by ploughing. Interior c. 2ha. Banks c. 3.7m high internally, 1.5m-3m externally, with external ditches. On NE side of spur banks turn NW for additional c. 100m to side of shallow re-entrant. This length possibly not completed and outer ditch just shallow scarping. Original entrance uncertain but if site unfinished, could have been intended to site at termination of rampart on N. Major break in banks on E could be modern, or again a possible site of entrance if site unfinished. Strip lynchets visible in interior and outside on NW. Pasture interior. Wood on SW surrounds. On 1st Ed. OS map (1881). Undated.
Citizen Science: ✗
Reliability of Data: Confirmed
Reliability of Interpretation: Confirmed
X: -277803 Y: 6733861 (EPSG: 3857)
Longitude: -2.495544138051217 Latitude: 51.6320175369729 (EPSG:4326)
Country: England; None
Current County or Unitary Authority: South Gloucestershire
Historic County: Gloucestershire
Current Parish/Community/Council/Townland: Thornbury; Rockhampton
Present state of defences unclear. Buildings impinge on NW.
| Extant | ✓ |
| Cropmark | ✗ |
| Likely Destroyed | ✗ |
Pasture interior. Wood on SW surrounds.
| Woodland | ✓ |
| Commercial Forestry Plantation | ✗ |
| Parkland | ✗ |
| Pasture (Grazing) | ✓ |
| Arable | ✗ |
| Scrub/Bracken | ✗ |
| Bare Outcrop | ✗ |
| Heather/Moorland | ✗ |
| Heath | ✗ |
| Built-up | ✗ |
| Coastal Grassland | ✗ |
| Other | ✗ |
Inland promontory on spur.
| Contour Fort | ✗ |
| Partial Contour Fort | ✗ |
| Promontory Fort | ✓ |
| Hillslope Fort | ✗ |
| Level Terrain Fort | ✗ |
| Marsh Fort | ✗ |
| Multiple Enclosure Fort | ✗ |
| Hilltop | ✗ |
| Coastal Promontory | ✗ |
| Inland Promontory | ✓ |
| Valley Bottom | ✗ |
| Knoll/Hillock/Outcrop | ✗ |
| Ridge | ✗ |
| Cliff/Plateau-edge/Scarp | ✗ |
| Hillslope | ✗ |
| Lowland | ✗ |
| Spur | ✓ |
Dominant Topographic Feature: Spur promontory
| North | ✗ |
| Northeast | ✗ |
| East | ✗ |
| Southeast | ✗ |
| South | ✗ |
| Southwest | ✓ |
| West | ✗ |
| Northwest | ✗ |
| Level | ✗ |
Altitude: 46.0m
Boundary Type: Parish/Townland
None.
Reliability: D - None
| Pre 1200BC | ✗ |
| 1200BC - 800BC | ✗ |
| 800BC - 400BC | ✗ |
| 400BC - AD50 | ✗ |
| AD50 - AD400 | ✗ |
| AD400 - AD 800 | ✗ |
| Post AD800 | ✗ |
| Unknown | ✓ |
| Pre Hillfort: | None |
| Post Hillfort: | Strip lynchets visible in interior and outside on NW. |
On 1st Ed. OS map (1881). Field investigation 1970 - no details. Features mapped from Environment Agency LiDar remote sensing data and aerial photographs taken in 2010.
| 1st Identified Map Depiction (1881): | OS map. |
| Other (1970): | Field investigation. |
| LiDAR Survey (2010): | Features mapped from Environment Agency LiDar remote sensing data and aerial photographs. |
None.
None
| None | ✓ |
| Spring | ✗ |
| Stream | ✗ |
| Pool | ✗ |
| Flush | ✗ |
| Well | ✗ |
| Other | ✗ |
None
| No Known Features | ✓ |
| Round Stone Structures | ✗ |
| Rectangular Stone Structures | ✗ |
| Curvilinear Platforms | ✗ |
| Other Roundhouse Evidence | ✗ |
| Pits | ✗ |
| Quarry Hollows | ✗ |
| Other | ✗ |
None
| No Known Excavation | ✓ |
| Pits | ✗ |
| Postholes | ✗ |
| Roundhouses | ✗ |
| Rectangular Structures | ✗ |
| Roads/Tracks | ✗ |
| Quarry Hollows | ✗ |
| Other | ✗ |
| Nothing Found | ✗ |
None
| No Known Geophysics | ✓ |
| Pits | ✗ |
| Roundhouses | ✗ |
| Rectangular Structures | ✗ |
| Roads/Tracks | ✗ |
| Quarry Hollows | ✗ |
| Other | ✗ |
| Nothing Found | ✗ |
None
| No Known Finds | ✓ |
| Pottery | ✗ |
| Metal | ✗ |
| Metalworking | ✗ |
| Human Bones | ✗ |
| Animal Bones | ✗ |
| Lithics | ✗ |
| Environmental | ✗ |
| Other | ✗ |
None
| APs Not Checked | ✓ |
| None | ✗ |
| Roundhouses | ✗ |
| Rectangular Structures | ✗ |
| Pits | ✗ |
| Postholes | ✗ |
| Roads/Tracks | ✗ |
| Other | ✗ |
Original entrance uncertain. If site unfinished, could have been intended to site at termination of defences on N. Major break in banks on E could be modern, or again a possible site of entrance if site unfinished. Strip lynchets visible in interior and outside on NW.
| 1: | None |
| 2: | Possible only |
Guard Chambers: ✗
Chevaux de Frise: ✗
| 1. Simple Gap (East): | Possible site of entrance, but could be modern. |
Gently sloping approach of spur from SE cut off by two ramparts and ditch, inner stronger than outerwhere bank and ditch reduced by ploughing. On NE side of spur banks turn NW for additional 100m to side of shallow re-entrant. This length possibly not completed and outer ditch just shallow scarping. Original
| Area 1: | 2.0ha. |
| Total: | 2.0ha. |
Total Footprint Area: Noneha.
None
| ✗ | None |
| ✗ | None |
| NE Quadrant: | 1 |
| SE Quadrant: | 2 |
| SW Quadrant: | 0 |
| NW Quadrant: | 0 |
| Total: | 2 |
| Partial Univallate | ✓ |
| Univallate | ✗ |
| Partial Bivallate | ✓ |
| Bivallate | ✗ |
| Partial Multivallate | ✗ |
| Multivallate | ✗ |
| Unknown | ✗ |
| Partial Univallate | ✗ |
| Univallate | ✗ |
| Partial Bivallate | ✗ |
| Bivallate | ✗ |
| Partial Multivallate | ✗ |
| Multivallate | ✗ |
Possibly unfinished. Berm before possible ditch on N addition.
| None | ✗ |
| Earthen Bank | ✓ |
| Stone Wall | ✗ |
| Rubble | ✗ |
| Wall-walk | ✗ |
| Evidence of Timber | ✗ |
| Vitrification | ✗ |
| Other Burning | ✗ |
| Palisade | ✗ |
| Counter Scarp Bank | ✗ |
| Berm | ✓ |
| Unfinished | ✓ |
| Other | ✗ |
None
| None | ✗ |
| Earthen Bank | ✗ |
| Stone Wall | ✗ |
| Murus Duplex | ✗ |
| Timber-framed | ✗ |
| Timber-laced | ✗ |
| Vitrification | ✗ |
| Other Burning | ✗ |
| Palisade | ✗ |
| Counter Scarp Bank | ✗ |
| Berm | ✗ |
| Unfinished | ✗ |
| No Known Excavation | ✓ |
| Other | ✗ |
| ✗ | None |
| ✓ | None |
Number of Ditches: 2
| ✗ | None |
Tratman, E.K. 1972. Council for British Archaeology : Group 12 (Wessex) and Group 13 (South West) : Archaeological review, 7, 22.
Atlas of Hillforts:
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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
Document Version 1.1