Scheduled MonumentsWalesHendrefor Burial Chambers
Prehistoric · Chambered Tomb

Hendrefor Burial Chambers

Anglesey, Wales
Cadw SAM AN025
Period
Prehistoric
Site type
Chambered Tomb
Broad class
Religious, Ritual and Funerary
Nation
Wales
Boundary

Scheduled area

© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw

Overview

History & significance

Hendrefor Burial Chambers is a prehistoric chambered tomb located in Wales, protected by Cadw as a scheduled monument under reference AN025. The site sits upon bedrock of Upper Cambrian age, specifically Tremadoc metasedimentary rock, a metamorphosed sedimentary sequence that formed during the Tremadocian period some 485 million years ago. This ancient geology provided the local stone from which the monument's builders would have quarried materials for construction.

The burial chambers represent a significant example of Neolithic funerary architecture, belonging to a tradition of communal burial practice that spread across much of Britain and Ireland during the fourth and third millennia before Christ. Such monuments typically comprise stone-built chambers, originally covered by substantial cairns or earthen mounds, and served to house the collective dead of their communities across multiple generations.

The Tremadoc bedrock underlying Hendrefor would have weathered into usable stone blocks, making this location suitable for such substantial construction work. The monument's survival and protection reflects the archaeological importance of chambered tombs in understanding Neolithic settlement patterns, ritual practices and the social organisation of prehistoric Welsh communities.

Hendrefor Burial Chambers is a scheduled monument protected by Cadw under reference AN025. View the official record →

About this monument

Questions & answers

What is Hendrefor Burial Chambers?

Hendrefor Burial Chambers is a prehistoric chambered tomb located in Wales, protected by Cadw as a scheduled monument under reference AN025.

What period does Hendrefor Burial Chambers date from?

Hendrefor Burial Chambers dates from the prehistoric period, and is classified as a chambered tomb. It is one of over 32,000 scheduled monuments protected across the UK.

Who is responsible for protecting Hendrefor Burial Chambers?

Hendrefor Burial Chambers 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 AN025.

What other scheduled monuments are near Hendrefor Burial Chambers?

Several scheduled monuments lie within 10 km, including Goetre Uchaf barrow (7.4 km), Plas Newydd Burial Chambers (8.2 km), Gors y Brithdir Enclosed Hut Group & Ancient Fields (8.4 km).

Unlimited access

Everything a full report reveals about Hendrefor Burial Chambers

This page is just one thread. A full Aubrey report pulls together 13 strands of Hendrefor Burial Chambers's history, each drawn from the record and mapped to the exact spot:

Overview
An interactive map of the location with every monument and battle plotted, and a plain-language history built only from what the record holds.
Monuments
The legally protected scheduled monuments around the location, each with its period, type and significance.
Battlefields
The battles and sieges fought on this ground, mapped and set on a timeline of the wider conflict.
Roman Britain
The Roman roads, forts and towns near here, and the Iron Age people who held the land before Rome arrived.
Civil War
The Civil War fighting, garrisons and recorded militaria in this area, woven into the arc of 1642 to 1651.
Geology
The bedrock beneath the site, its age and rock type, reaching back hundreds of millions of years.
Local Names
What the street and field names around here actually mean, and the history buried inside them.
Historical Maps
Ordnance Survey maps from the 1800s, layered over the location as it stands today.
Literature
The books, county histories, charters and archives that mention this place, quoted with their sources.
Legal
The protected sites nearby and the metal-detecting, access and treasure laws that apply to this ground.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Target Zones
For detectorists: the most promising ground to search nearby, ranked by confidence, with what to expect.
Timeline
The whole story of the location told era by era, from prehistory to the present day.
First month just £4.99, then £9.99 a month. Unlimited locations, cancel anytime.

Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.

Start your Hendrefor Burial Chambers report
Or see a real report first
The ground beneath

The bedrock under Hendrefor Burial Chambers

Hendrefor Burial Chambers stands on Upper Cambrian, Including Tremadoc, bedrock that formed in the Tremadocian. The rock here is metasedimentary rock.

The wider landscape

Around Hendrefor Burial Chambers

Bryn Celli DduArchaeological site · ~5.3 miles