Atlas of Hillforts of Britain and Ireland

EN0480 Castle Hill Alnham, Northumberland

LiDAR 1m DTM Hillshade

LiDAR 1m DTM Hillshade

Satellite Imagery

Satellite Imagery

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HER:  Northumberland 1338 (None)

NMR:  NT 91 SE 9 (2260)

SM:  1006609

NGR:  NT 9799 1094

X:  397993  Y:  610940  (OSGB36)

Summary

To the SE of Alnham, overlooking Spartley Burn, a well-preserved multivallate hillfort, presumed Iron Age but with Romano-British activity within the interior. It is oval in plan enclosing 0.4ha with the innermost rampart considered to possibly be an earlier enclosure (Jobey 1965), which now survives as slight traces of a low, intermittent earthen bank. In the second phase it was enclosed by two substantial concentric banks and an outer ditch, the ditch being absent where the ground is steepest in the SW. In the third phase, a third rampart, not quite concentric, was added to the exterior, the outer and middle ramparts amalgamated in the SW due to the steepness of the slope. In a final phase the areas of the outer bank that flank the entrances were heightened and the entrances narrowed (Oswald et al. 2006). Definite entrances in the E are offset obliquely through the three rampart banks, with those of a possible further original entrance in the SE aligned. A further break in the outer rampart in the W carries a Romano-British track. The remains of at least three circular Iron Age stone-founded huts lie within the interior. Further Romano-British roundhouses and stock enclosures lie within and overlie the ramparts in the NE with further outside the hillfort in the NE, E and NW. The site is unexcavated but was surveyed during the 'Discovering our Hillfort Heritage' Project in 2000. It is recorded on 1856-65 OS mapping.

Status

Citizen Science:  ✗

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -226338  Y:  7438407  (EPSG: 3857)

Longitude:  -2.0332285881573147  Latitude:  55.39244315117115  (EPSG:4326)

Country:  England

Current County or Unitary Authority:  Northumberland

Historic County:  Northumberland

Current Parish/Community/Council/Townland:  Alnham

Monument Condition

None

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 partial contour fort overlooking Spartley Burn on the level summit of a spur at 290m OD

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:  Summit of a spur

Aspect:
North   ✗
Northeast   ✗
East   ✗
Southeast   ✗
South   ✗
Southwest   ✗
West   ✗
Northwest   ✗
Level   ✓

Altitude:  290.0m

Boundary

N/A


Dating Evidence

Enclosure undated, presumed Iron Age

Reliability:  D - None

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:   Overlying Late Iron Age or Romano-British settlement enclosure

Evidence:
Morphology/Earthwork/Typology:   None

Investigation History

Recorded on 1856-65 OS mapping. Field investigations in 1957, 1976. Included in SE Cheviots Project 1989. The site underwent a detailed analytical survey and reinterpretation in 2000 at the request of the Northumberland National Park Authority. Scheduled

Investigations:
Other (1932):   Scheduled
Other (1958):   Field investigation
Other (1969):   Visit by Hillfort Study Group
Other (1976):   Field investigation
Other (1989):   SE Cheviots Project
Earthwork Survey (2000):   Analytical Survey 'Discovering our Hillfort Heritage' Project
1st Identified Map Depiction (None):   None

Interior Features

Three circular stone huts are possibly contemporary with the hillfort. An enclosed settlement within the hillfort considered to be Romano-British in date, survives as at least four small enclosures, one with evidence for two definite and two possible circular building platforms. The other is possibly a stock enclosure

Water Source

None

Source:
None   ✓
Spring   ✗
Stream   ✗
Pool   ✗
Flush   ✗
Well   ✗
Other   ✗

Surface

Stone round-houses are probably Late Iron Age or Romano-British

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

None

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

Finds

Black bead, possibly jet, found on Castle Hill. Undated

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

Definite entrances in the E are offset obliquely through the three rampart banks, with those of a possible further original entrance in the SE aligned. A further break in the outer rampart in the W carries a Romano-British track. In a final phase the areas of the outer bank that flank the entrances were heightened and the entrances narrowed (Oswald et al. 2006).

Total Number of Breaks Through Ramparts:  
3:   None

Number of Possible Original Entrances:  
2:   None

Guard Chambers:  ✗

Chevaux de Frise:  ✗

Entrances:
1. Oblique (East):   Inner rampart
1. Oblique (East):   Middle rampart
1. Oblique (East):   Outer rampart
2. Simple Gap (South east):   Inner rampart
2. Simple Gap (South east):   Middle rampart
2. Simple Gap (South east):   Outer rampart

Enclosing Works

Multivallate, comprising three turf-covered ramparts and an outer ditch which is absent in the SW. The innermost bank is 3m high, the middle 0.4-1.8m high internally and 1.0-2.2m externally. The outer and most substantial bank is 2.6m high internally and 4m externally. The outer ditch is 1.5m deep in the S and E and 2m deep in the W. Slight traces of an internal low, intermittent earthen bank probably represents and earlier phase

Enclosed Area:
Area 1:   0.4ha.
Total:   0.4ha.

Total Footprint Area:  1.9ha.

Ramparts

None

Multi-period Enclosure System:
✓   None

Ramparts Form a Continuous Circuit:
✓   The ditch is not present in the SW

Number of Ramparts:  
NE Quadrant:   3
SE Quadrant:   3
SW Quadrant:   3
NW Quadrant:   3
Total:   3

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

None

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:
✗   None

Ditches:
✓   None

Number of Ditches:  1

Annex:
✗   None

References

Jobey G. 1965. Hillforts and Settlements in Northumberland. Archaeol Aeliana 43, 61

Oswald, A. Ainsworth, S. and Pearson, T, 2006 Hillforts: Prehistoric Strongholds of Northumberland National Park. English Heritage

Pearson, T., Lax, A. and Ainsworth, S. 2001. An Iron Age Hillfort and its Environs on Castle Hill, Alnham, Northumberland. English Heritage. York. Unpublished



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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