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Langwell Castle, also known as Achastle, is a castle ruin situated 230 metres east of Langwell House in Caithness, northern Scotland. The monument stands upon bedrock of Middle Old Red Sandstone, a sequence of conglomerate, sandstone, siltstone and mudstone laid down during the Middle Devonian period. This substantial stone foundation would have provided good building material for the castle's construction, with the local geology shaping both the site's defensibility and the resources available to its builders.
The castle occupies a strategic position in the Caithness landscape, a region dominated by the weathered remnants of ancient red sandstone formations. The site's geology is typical of the far north of mainland Scotland, where Devonian sedimentary deposits underlie much of the terrain. The proximity to Langwell House, a later structure, suggests continuity of settlement and land use in this locality over several centuries.
Langwell Castle is protected as a scheduled monument by Historic Environment Scotland under reference SM3437, reflecting its importance to the archaeological and historical heritage of Caithness. The monument contributes to our understanding of medieval and early modern settlement patterns in the north Highlands, where castles and fortified houses served as centres of local authority and defence.
Langwell Castle or Achastle,230m E of Langwell House is a scheduled monument protected by Historic Environment Scotland under reference SM3437. View the official record →
Langwell Castle, also known as Achastle, is a castle ruin situated 230 metres east of Langwell House in Caithness, northern Scotland. It is designated a Scheduled Ancient Monument by Historic Environment Scotland under reference SM3437.
Langwell Castle or Achastle,230m E of Langwell House 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 SM3437.
Several scheduled monuments lie within 10 km, including Berriedale Castle (0.5 km), Rinsary, broch and post-medieval farmstead 300m SSW of, Berriedale (0.6 km), Langwell House,cairn 400m SW of,Berriedale (0.7 km).
This page is just one thread. A full Aubrey report pulls together 14 strands of Langwell Castle or Achastle,230m E of Langwell House'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.
Langwell Castle or Achastle,230m E of Langwell House stands on Middle Old Red Sandstone (Undifferentiated), bedrock that formed in the Middle Devonian. The rock here is conglomerate, sandstone, siltstone and mudstone.