Scheduled Monument

Seton Mains, fortSM6191

Status: Designated

Documents

Where documents include maps, the use of this data is subject to terms and conditions (https://portal.historicenvironment.scot/termsandconditions).

The legal document available for download below constitutes the formal designation of the monument under the Ancient Monuments and Archaeological Areas Act 1979. The additional details provided on this page are provided for information purposes only and do not form part of the designation. Historic Environment Scotland accepts no liability for any loss or damages arising from reliance on any inaccuracies within this additional information.

Summary

Date Added
10/03/1995
Last Date Amended
22/11/2019
Type
Prehistoric domestic and defensive: fort (includes hill fort and promontory fort)
Local Authority
East Lothian
Planning Authority
East Lothian
Parish
Tranent
NGR
NT 42465 75383
Coordinates
342465, 675383

Description

The monument comprises an enclosed prehistoric settlement (a fort) visible as cropmarks recorded on aerial photographs to the west and above the Seton Dean burn. The fort is D-shaped on plan, defined by an outer enclosing ditch and two further inner palisades. At least four roundhouses have been identified within the interior. The fort occupies higher ground above the Seton Burn which would have originally formed the eastern boundary of the fort.

The fort measures around 100m in diameter within three concentric enclosures. The outermost comprises a ditch ending in curved terminals, the gap between which forms an entrance of 7.5m in width. The second enclosure comprises a narrower sub-circular ditch around 1m in width with slots cut for a timber palisade. There is a gap which forms an entrance which is offset to the north of the outer enclosure entrance. The innermost enclosure also comprises a sub-circular ditch around 1m in width with evidence for a timber palisade. Within the inner enclosure are the remains of a round house. The remains of two further round houses lie to the south and were built over the outermost of the palisades indicating that they are later in date than that feature.

The scheduled area is irregular. It includes the remains described above and an area around within which evidence relating to the monument's construction, use and abandonment is expected to survive, as shown in red on the accompanying map.  The scheduling specifically excludes the above ground elements of all the modern boundaries, the above and below ground elements of the Scottish Water pumping station 11m northeast of The Larches and the top 20cm of all roads and tracks to allow for their maintenance.

Statement of National Importance

The national importance of the monument is demonstrated in the following way(s) (see Designations Policy and Selection Guidance, Annex 1, para 17):

a.   The monument is of national importance because it makes a significant contribution to our understanding of the past as a fort dating to the middle Bronze Age to early Iron Age. It adds to our understanding of prehistoric society in eastern Scotland and the function, use and development of forts and other enclosed settlements at this time.

b.   The monument retains structural and other physical attributes which make a significant contribution to our understanding of the past. The plan of the monument is clear and understandable through the cropmark evidence and there is significant potential for the survival of buried archaeological deposits. The monument can significantly add to our understanding of domestic settlement, agriculture and economy during the Iron Age.

d.   The monument is a particularly good example of a D-shaped fort dating to the middle Bronze Age to early Iron Age with multiple enclosures and evidence of internal structures. It is therefore an important representative sample of this monument type.

e.   The monument has research potential which could significantly contribute to our understanding of the past. Its enclosure ditches and round house remains could provide material for carbon dating which when compared with similar monuments could contribute to a better understanding of the chronological development of settlement during this period of Scottish prehistory. Additionally, environmental material surviving within these buried features, particularly the ditches, could also provide information on diet, agricultural practice and local ecology.

Assessment of Cultural Significance

This statement of national importance has been informed by the following assessment of cultural significance:

Intrinsic characteristics (how the remains of a site or place contribute to our knowledge of the past)

The monument is a fort, an enclosed prehistoric settlement which is likely to date from mid Bronze Age to early Iron Age.   The monument is visible as cropmarks on oblique aerial photographs.  Excavations of similar monuments in East Lothian such as East Linton, fort, 800m SW of (scheduled monument SM4169) have shown prolonged periods of occupation or reoccupation of this type of monument with dates ranging from 1370-1050 BC to 390-200 BC. This range of dates span the mid Bronze Age to early Iron Age.

The plan of the monument is clear and understandable forming a D-shape. The fort comprises three concentric enclosure ditches bounded to the east by a steep drop to the Seton Burn. The central and inner ditches are likely to be the remains of slots for timber palisades, the entrances of which are offset to the north of the outer enclosure's entrance. At least four round houses, an L-shaped post setting and two thin ditches, are visible also. Two of the round houses overly the central enclosure's southern ditch. This arrangement of offset and overlying features indicates that this is a multi-phase settlement which retains structural and physical attributes that can significantly add to our understanding of domestic settlement, agriculture and economy during the Iron Age.

There is good potential for the survival of buried archaeological features and deposits, including occupation and abandonment debris, artefacts and environmental remains within the monument. Excavations at Whittinghame Tower, enclosure 250m SW of (scheduled monument SM6067) have provided evidence of crops such as hulled barley, oats and emmer wheat and artefacts such as a copper and blue enamel stud, stone tools, decorated stone, a saddle quern and pottery. This monument has the potential to add to our understanding of settlement, land-use and environment, diet, and social status of the occupants, as well as the structure of contemporary society and economy. Scientific study of this site would allow us to confirm the date range of the monument any possible development sequence through radiocarbon dating.

Contextual characteristics (how a site or place relates to its surroundings and/or to our existing knowledge of the past)

Forts and defended settlements are found throughout Scotland, however, this monument is a particularly good example of a D-shaped fort. Being bounded to the Seton Burn would have made the fort easily defendable form the east. It is part of a wider group of sixty such sites in East Lothian which make use of a drop to a gully, watercourse or escarpment to enclose one side of the settlement. The fort is sited in a flat area that rises gently from the coast line. This would have provided uninterrupted views of the surrounding landscape.

The fort may be related to other later prehistoric settlements in the area, such as Riggonhead (Canmore ID 54993) and Seton West Mains, enclosures 500 SW of, (scheduled monument SM5687). There is potential to study these sites together to better understand their functions within the local communities, settlement hierarchy and possible chronological development in the area. The monument has the potential to enhance and broaden our understanding of prehistoric society and community as well as social organisation, land division and land use.

Associative characteristics (how a site or place relates to people, events, and/or historic and social movements)

There are no known associative characteristics that contribute to this site's cultural significance.

References

Bibliography

Historic Environment Scotland http://www.canmore.org.uk reference number CANMORE ID 54928 (accessed on 15/08/2019).

Local Authority HER/SMR Reference MEL505 (accessed on 15/08/19).

Haselgrove, C. and Hale D. 2009 The Evaluations at East Bearford, Foster Law and East Linton. In: Haselgrove, C. (ed.)The Traprain Law Environs Project Fieldwork and Excavations 2000-2004 Edinburgh, Society of Antiquaries of Scotland, 99-115.

ScARF 2012 Hunter, F. and Carruthers, M. (eds) Iron Age Scotland Scottish Archaeological Research Framework: Society of Antiquaries of Scotland. Available online at http://tinyurl.com/cx4nlt8 (accessed on 14/08/2019).

ScARF 2012 Downes J. (ed.) Chalcolithic and Bronze Age Scotland: ScARF Panel Report Scottish Archaeological Research Framework:Society of Antiquaries of Scotland. Available online at https://scottishheritagehub.com/node/1203 (accessed on (15/08/2019).

About Scheduled Monuments

Historic Environment Scotland is responsible for designating sites and places at the national level. These designations are Scheduled monuments, Listed buildings, Inventory of gardens and designed landscapes and Inventory of historic battlefields.

We make recommendations to the Scottish Government about historic marine protected areas, and the Scottish Ministers decide whether to designate.

Scheduling is the process that identifies, designates and provides statutory protection for monuments and archaeological sites of national importance as set out in the Ancient Monuments and Archaeological Areas Act 1979.

We schedule sites and monuments that are found to be of national importance using the selection guidance published in Designation Policy and Selection Guidance (2019)

Scheduled monument records provide an indication of the national importance of the scheduled monument which has been identified by the description and map. The description and map (see ‘legal documents’ above) showing the scheduled area is the designation of the monument under the Ancient Monuments and Archaeological Areas Act 1979. The statement of national importance and additional information provided are supplementary and provided for general information purposes only. Historic Environment Scotland accepts no liability for any loss or damages arising from reliance on any inaccuracies within the statement of national importance or additional information. These records are not definitive historical or archaeological accounts or a complete description of the monument(s).

The format of scheduled monument records has changed over time. Earlier records will usually be brief. Some information will not have been recorded and the map will not be to current standards. Even if what is described and what is mapped has changed, the monument is still scheduled.

Scheduled monument consent is required to carry out certain work, including repairs, to scheduled monuments. Applications for scheduled monument consent are made to us. We are happy to discuss your proposals with you before you apply and we do not charge for advice or consent. More information about consent and how to apply for it can be found on our website at www.historicenvironment.scot.

Find out more about scheduling and our other designations at www.historicenvironment.scot/advice-and-support. You can contact us on 0131 668 8914 or at designations@hes.scot.

Images

Seton Mains, fort, looking north-east over the interior on a sunny day with blue sky.

Printed: 21/08/2025 19:23