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Allt Dolanog Hillfort is a prehistoric fortified settlement occupying a prominent position in Wales. The site exploits the natural defensive properties of its location, built upon Wenlock Rocks of Silurian age, a bedrock of mudstone, siltstone and sandstone that provides a stable foundation and steep natural slopes. This geological substrate would have offered significant advantages to the hillfort's builders, requiring less labour to create imposing ramparts and making the position naturally difficult to assault.
The hillfort represents the settlement strategies of Iron Age communities in Wales, though its precise date of construction and occupation remains subject to archaeological investigation. The topography of the site, with its commanding views of the surrounding landscape, indicates the builders' understanding of both defensive positioning and control of local territory. The Wenlock bedrock geology typical of the region would have shaped the construction techniques available to its inhabitants.
Today Allt Dolanog Hillfort is protected as a scheduled monument under Cadw, the Welsh Historic Monuments Service, ensuring its preservation for future study. The site contributes to our understanding of prehistoric settlement patterns and defensive architecture in the Welsh uplands, where such forts represent some of the most substantial structures of their age.
Allt Dolanog Hillfort is a scheduled monument protected by Cadw under reference MG229. View the official record →
Allt Dolanog Hillfort is a prehistoric fortified settlement occupying a prominent position in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference MG229.
Allt Dolanog Hillfort dates from the prehistoric period, and is classified as a hillfort. It is one of over 32,000 scheduled monuments protected across the UK.
Allt Dolanog Hillfort is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is MG229.
Several scheduled monuments lie within 10 km, including Pen y Gorddyn Hillfort (1.9 km), Cae'r-Mynach Round Cairn (2.9 km), Pen-llys Hillfort (4.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Allt Dolanog Hillfort'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.
Allt Dolanog Hillfort stands on Wenlock Rocks (Undifferentiated), bedrock that formed in the Wenlock. The rock here is mudstone, siltstone and sandstone.