© Mapbox · © OpenStreetMap contributors · Boundary data © Historic Environment Scotland
Collin Mill Bridge fort is an Iron Age hillfort situated in Kirkcudbrightshire, south-western Scotland. The monument occupies a defensible position within an landscape of distinctive geology: the bedrock comprises an unnamed felsic igneous intrusion of Early Devonian age, part of the Late Silurian to Early Devonian igneous suite that characterises this region. This ancient volcanic geology would have provided the fort's builders with stone for defensive ramparts and structural elements.
As a hillfort of the Iron Age period, Collin Mill Bridge represents a class of settlement that dominated the British Isles from approximately the 8th century BC onwards. Such forts typically served defensive, administrative and social functions for their communities, commanding strategic views of surrounding territory. The site's location within Kirkcudbrightshire places it within a region rich in Iron Age settlement evidence.
The fort is protected under Historic Environment Scotland's scheduling system, designated as SM1103. This statutory protection recognises its archaeological significance and ensures that the physical remains of the fort and the landscape context that informed its original construction are conserved for future research and understanding of Iron Age settlement patterns in south-western Scotland.
Collin Mill Bridge,fort is a scheduled monument protected by Historic Environment Scotland under reference SM1103. View the official record →
Collin Mill Bridge fort is an Iron Age hillfort situated in Kirkcudbrightshire, south-western Scotland. It is designated a Scheduled Ancient Monument by Historic Environment Scotland under reference SM1103.
Collin Mill Bridge,fort dates from the iron age period, and is classified as a fort. It is one of over 32,000 scheduled monuments protected across the UK.
Collin Mill Bridge,fort 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 SM1103.
Several scheduled monuments lie within 10 km, including Seaside,forts 590m SSW & 400m SW of (1.8 km), Suie Hill,fort (2.5 km), Hass,fort,700m NNW of Glenhead (2.9 km).
This page is just one thread. A full Aubrey report pulls together 14 strands of Collin Mill Bridge,fort'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.
Collin Mill Bridge,fort stands on Unnamed Igneous Intrusion, Late Silurian To Early Devonian, bedrock that formed in the Early Devonian. The rock here is felsic-rock.