Iron Age defended settlement 250m north of Higher Trenower

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Overview

Heritage Category:
Scheduled Monument
List Entry Number:
1004428
Date first listed:
28-Jun-1972

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Official list entry

Heritage Category:
Scheduled Monument
List Entry Number:
1004428
Date first listed:
28-Jun-1972
Location Description:
Legacy Record - This information may be included in the List Entry Details.

Location

The building or site itself may lie within the boundary of more than one authority.

District:
Cornwall (Unitary Authority)
Parish:
Manaccan
National Grid Reference:
SW7497123807

Reasons for Designation

During the Iron Age a variety of different types of settlement were constructed and occupied in south western England. At the top of the settlement hierarchy were hillforts built in prominent locations. In addition to these a group of smaller sites, known as defended settlements, were also constructed. Some of these were located on hilltops, others in less prominent positions. They are generally smaller than the hillforts, sometimes with an enclosed area of less than 1ha. The enclosing defences were of earthen construction. Univallate sites have a single bank and ditch, multivallate sites more than one. At some sites these earthen ramparts represent a second phase of defence, the first having been a timber fence or palisade. Where excavated, evidence of stone- or timber-built houses has been found within the enclosures, which, in contrast to the hillfort sites, would have been occupied by small communities, perhaps no more than a single family group. Defended settlements are a rare monument type. They were an important element of the settlement pattern, particularly in the upland areas of south western England, and are integral to any study of the developing use of fortified settlements during this period. Despite reduction in the heights of the ramparts through cultivation and the construction of a windmill in the interior, the Iron Age defended settlement 250m north of Higher Trenower survives comparatively well and will contain archaeological and environmental evidence relating to its construction, longevity, function, agricultural practices, social organisation, territorial and strategic significance, domestic arrangements, re-use and overall landscape context.

Details

The monument includes an Iron Age defended settlement, situated at the summit of a prominent ridge which forms the watershed between two unnamed tributaries to the Helford River. The settlement survives as a rectangular enclosure. It is defined by a rampart up to 1.2m high externally with a 0.4m deep partially buried outer ditch, a counterscarp bank to the north, east and south east and a simple southern entrance. In 1803, Polwhele described the foundations of a circular watchtower or windmill, in the north eastern corner of the enclosure as having been 'recently removed'. The field is locally known as 'Windmill Field'.

Sources: HER:- PastScape Monument No:-427428 and 427546

Legacy

The contents of this record have been generated from a legacy data system.

Legacy System number:
CO 434
Legacy System:
RSM - OCN

Legal

This monument is scheduled under the Ancient Monuments and Archaeological Areas Act 1979 as amended as it appears to the Secretary of State to be of national importance. This entry is a copy, the original is held by the Department for Culture, Media and Sport.

Ordnance survey map of Iron Age defended settlement 250m north of Higher Trenower

Map

This map is for quick reference purposes only and may not be to scale. This copy shows the entry on 06-Jun-2026 at 17:56:26.

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© Crown copyright [and database rights] 2026. OS AC0000815036. Use of this mapping is subject to Terms and Conditions.

End of official list entry

All text content is available under the Open Government Licence v3.0 , except where otherwise stated. Any supplied maps are © Crown Copyright [and database rights] 2026 OS AC0000815036 and may not be reproduced without permission.

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