Atlas of Hillforts of Britain and Ireland

SC2597 Dun Mac Sniachan, Argyll (Dun Mac Uisneachan; Dunmacsniachan; Dun Macuisneachan; Benderloch; Ardmucknish Bay)

Satellite Imagery

Satellite Imagery

HER:  The West of Scotland Archaeology Service 1399 (None)

NMR:  NM 93 NW 2 (23234)

SM:  2179

NGR:  NM 9032 3822

X:  190320  Y:  738220  (OSGB36)

Summary

This fort is situated on an elongated ridge that rises from the edge of the shore to the NE of Benderloch Station. Steep slopes and rock faces extend round its flanks, and the easiest access is across the relatively gentle slopes at the NE end. The crest of the ridge is divided into two levels, the upper including the summit at the SW end, and the lower the rest of the spine extending out some 150m to the NE and contracting into a relatively narrow finger no more than 20m wide. The visible fortifications represent at least three phases of construction, the latest of them a relatively small enclosure measuring about 18m by 15m internally, which, along with two walls cutting across the spine of the ridge on its SW, occupies the crest of the narrow finger on the NE. These defences directly overlie the earliest fort, which not only takes in the whole of the narrow finger on the NE, but contours around the flank of the higher end of the ridge on the SW to enclose an irregular area measuring about 250m in length from NE to SW by a maximum of 50m transversely (0.75ha); reduced to a band of grass-grown rubble, RCAHMS investigators noted five separate in situ vitrified masses in its core. No certain entrances have been identified in its near continuous circuit, options being either at the NE end or in a broad gap at the head of a steep gully in the natural re-entrant formed by the topography of the hill on the E. This large fort is also overlain by a small fort occupying the upper, SW, end of the ridge. This appears roughly oval on plan today, but with a dogleg forming a sharp angle where it follows the line of the earlier wall on the NW side. Internally it measures 52m from NE to SW by 21m transversely (0.08ha) and though its heavily vitrified wall is reduced to a bank up to 6m in thickness, there is a run of inner face visible over a distance of 7m on the SE; the position of the entrance is not known. Robert Angus Smith carried out excavations in this small later fort 1873-4, revealing relatively deep deposits within the interior, and in a confused account describing what appear to have been rectangular structures at the NE end and a 'long passage' (Smith 1874; 1876; 1878). Contrary to what is visible today, his plan (1878 pl 1) portrays the line of the wall at the NE end in a regular arc, and he ascribed the dogleg to a later period of reconstruction in which pieces of vitrified stone had been incorporated into the core of a new wall on a different line. In the course of this work they found part of a tanged iron sword, an iron dagger, an iron ring, an enamelled bronze mount, a bronze ring and several quernstones, together with a quantity of animal bones.

Status

Citizen Science:  

Reliability of Data:  Confirmed

Reliability of Interpretation:  Confirmed

Location

X:  -601958  Y:  7656444  (EPSG: 3857)

Longitude:  -5.407478680601138  Latitude:  56.489298665165336  (EPSG:4326)

Country:  Scotland

Current County or Unitary Authority:  Argyll & Bute

Historic County:  Argyll

Current Parish/Community/Council/Townland:  Ardchattan And Muckairn

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

None

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:  None

Aspect:
North  
Northeast  
East  
Southeast  
South  
Southwest  
West  
Northwest  
Level  

Altitude:  40.0m

Boundary

N/A


Dating Evidence

A tanged iron sword, an iron dagger, an iron ring, an enamelled bronze mount, a bronze ring and several quernstones, together with a quantity of animal bones, but contexts unknown

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:   Rectangular structures are likely to be later

Evidence:
Artefactual:   None

Investigation History

None

Investigations:
1st Identified Written Reference (1772):   Visited by Thomas Pennant (1774, 411-12)
1st Identified Map Depiction (1871):   Annotated Fort on 1st edition OS 25-inch map (Argyll and Bute 1875, sheet 87.1)
Excavation (1873):   By Robert Angus Smith (1872a; 1874; 1876; 1878)
Other (1888):   Description by David Christison (1889, 382)
Earthwork Survey (1958):   Plan (RCAHMS AGD 388/2; Feachem 1963, 109)
Other (1961):   Scheduled
Other (1968):   Visited by Helen Nisbet (RCAHMS SC723379)
Earthwork Survey (1969):   Plan and description (RCAHMS 1975, 68-70, no.136, fig 35; RCAHMS AGD 388/1)
Other (1971):   Surveyed at 1:2500 by the OS
Other (2013):   Re-Scheduled

Interior Features

Nothing visible on the surface

Water Source

There is a well on the SE flank of the ridge, partly natural but improved; it was cleared out by Smith in 1871 (1872b, 396)

Source:
None  
Spring  
Stream  
Pool  
Flush  
Well  
Other  

Surface

None

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

a tanged iron sword, an iron dagger, an iron ring, an enamelled bronze mount, a bronze ring and several quernstones, together with a quantity of animal bones

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

Aerial

Obscured by trees and bracken

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

Entrances

None known

Total Number of Breaks Through Ramparts:  
0:   None

Number of Possible Original Entrances:  
2:   None known

Guard Chambers:  

Chevaux de Frise:  

Entrances:No related records

Enclosing Works

Two successive forts with vitrified walls, and also a smaller dun with outworks

Enclosed Area:
Area 1:   0.08ha.
Area 2:   0.75ha.
Total:   0.75ha.

Total Footprint Area:  0.8ha.

Ramparts

None

Multi-period Enclosure System:
✓   None

Ramparts Form a Continuous Circuit:
✓   None

Number of Ramparts:  
NE Quadrant:   2
SE Quadrant:   2
SW Quadrant:   2
NW Quadrant:   1
Total:   2

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:  None

Annex:
✗   None

References

Christison, D (1889) The duns and forts of Lorne, Nether Lochaber, and the neighbourhood'. Proc Soc Antiq Scot 23 (1888-9), 368-432

Feachem, R W (1963) Guide to prehistoric Scotland. Batsford: London

Nisbet, H C (1974) 'A geological approach to vitrified forts, part I: the archaeological and scientific background'. Sci & Archaeol 12 (1974), 3-12

Nisbet, H C (1975) 'A geological approach to vitrified forts, part II: bedrock and building stone'. Sci & Archaeol 15 (1975), 11

Pennant, T A Tour in Scotland Vol2

RCAHMS (1975) The Royal Commission on the Ancient and Historical Monuments of Scotland. Argyll: an inventory of the ancient monuments: volume 2: Lorn. HMSO: Edinburgh

Smith, R Angus (1872a) 'Descriptive List of Antiquities near Loch Etive, Argyllshire, consisting of Vitrified Forts, Cairns, Circles, Crannogs, &c.,; with some Remarks on the Growth of Peat.'. Proc Soc Antiq Scot 9 (1870-72), 81-106

Smith, R Angus (1872b) 'Descriptive List of Antiquities near Loch Etive.'. Proc Soc Antiq Scot 9 (1870-72), 396-418

Smith, R A (1874) 'Descriptive list of antiquities near Loch Etive. Part III'. Proc Soc Antiq Scot 10 (1872-74), 78-80

Smith, R Angus (1876) 'Descriptive List of Antiquities near Loch Etive. Part IV.'. Proc Soc Antiq Scot 11 (1874-76), 298-305

Smith, R Angus (1878) 'Descriptive List of Antiquities near Loch Etive. - No. 5. Plan of Dun-Mac Uisneachan.'. Proc Soc Antiq Scot 12 (1876-78), 13-19



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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