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Iron Castle is an earthwork monument situated in Roxburghshire, Scotland, occupying ground underlain by Stratheden Group bedrock of Late Devonian age. The underlying geology comprises interbedded sandstone and conglomerate, which would have influenced both the stability of any constructed features and the character of the surrounding landscape. The monument is protected as a scheduled monument under Historic Environment Scotland's designation SM2163.
The earthwork's form and function reflect Iron Age settlement patterns typical of the Scottish Borders region, where elevated or defensible positions were favoured for occupation. The local bedrock geology would have provided stone for construction, though the specific character of any surviving banks, ditches or internal features has been shaped by the underlying Devonian strata and its weathering properties.
The monument's current state and visibility reflect centuries of agricultural use and natural processes acting upon the Devonian sandstone and conglomerate bedrock. Its scheduling recognises the archaeological value of the site as evidence for Iron Age settlement and social organisation in the Borders, despite the challenges posed by post-depositional disturbance and the variable durability of earthworks constructed on this particular geological substrate.
Iron Castle,earthwork is a scheduled monument protected by Historic Environment Scotland under reference SM2163. View the official record →
Iron Castle is an earthwork monument situated in Roxburghshire, Scotland, occupying ground underlain by Stratheden Group bedrock of Late Devonian age. It is designated a Scheduled Ancient Monument by Historic Environment Scotland under reference SM2163.
Iron Castle,earthwork is a Scheduled Ancient Monument, legally protected by Historic Environment Scotland — the body responsible for designating and safeguarding heritage sites in Scotland. The official designation reference is SM2163.
Several scheduled monuments lie within 10 km, including Steel Knowe, medieval and later settlements and field systems (4.3 km), Martinlee Sike, enclosure bank, field system, cairns & old road (5.2 km), Martinlee Plantation, enclosure 140m N of (5.3 km).
This page is just one thread. A full Aubrey report pulls together 14 strands of Iron Castle,earthwork's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Iron Castle,earthwork stands on Stratheden Group, bedrock that formed in the Late Devonian. The rock here is sandstone and conglomerate, interbedded.