The Archaeology Files - Trethevy Quoit

Date of visit: 25 April 2021
Location: East of the village of St Cleer, 2 miles north of Liskeard, Cornwall
Time period: Neolithic, 4,000 BC to 2,500 BC
Type of site: A well-preserved Neolithic portal dolmen burial chamber
Photos: Trethevy Quoit site visit photo album 

Arriving at the five-space designated car park, the first thing you notice on a visit here are the signs indicating a World Heritage Site, not because of prehistoric monuments, but because of the mining landscape.  The reminder of Cornwall's mining heritage is everywhere, dotted about the landscape in all directions.  It's not the point of this site visit, but it is an interesting aside, and one that connects a more modern age with our ancient ancestors, through distinctive exploitation of the landscape.  I wonder what heed the miners paid monuments such as Trethevy Quoit, and I wonder if it had any influence on their traditions and superstitions.

Cornwall's rich mining heritage is evident all around, on a visit to Trethevy Quoit

Trethevy Quoit is a very nicely-preserved portal dolmen, a type of monument quite specific to Cornwall (and more usually, western Cornwall - Trethevy Quoit is an anomaly, being so far east), dating to the early or middle Neolithic (3500-2500BC.)  These structures are largely considered to be tombs, although it is not certain if this was their intended use - quite possibly they were multipurpose, or used in ceremony or worship.  

Trethevy Quoit.  Note the slightly raised ground around the base of the monument - possibly the remains of a mound or cairn which once covered the structure

The structure consists of five standing stones, topped by a huge capstone (estimated to weigh 10.5 tons), which slopes downwards from back-to-front at a much steeper angle than was originally designed.  This is because one of the supporting granite stones - the most westerly - collapsed at some point in the past, and now lies within the chamber itself.  Had this stone continued to stand, the capstone would rest roughly horizontally on top.  The structure stands 2.7 metres (9 feet) tall, and at its highest point, the capstone has a hole - possibly manmade - with one suggestion being that it was used for astronomical observations.  It is thought that the chamber was originally covered by a mound or cairn - you can see this in the slight remains of a low mound at the sides and back of the structure, but not at the entrance.  Local tradition states that the stones were set up by a giant, with the hole in the capstone being made by the giant's thumb, in order to lift the monument into its present position.  It is from this legend that the site gets an alternative name, The Giant's House.

A sketch of Trethevy Quoit from 1848 (artist unknown)

My overriding impression at Trethevy Quoit is one of awe, in how people managed to move such enormous hulks of granite - especially the raising of the capstone, and at a time when calories were so precious.  I believe this boils down to two aspects - firstly, a community must have had enough sustenance, and been confident in the supply of that sustenance, to undertake this project.  Second, a community must have had a complex level of organisation.  Simply put, once agriculture was adopted at the onset of the Neolithic, human communities evolved to become more sedentary and organised.  The supply of food was more reliable compared to the hunter-gatherer way of life, which in turn meant that communities started to lay down roots, explore myths, legends and spirituality associated with their immediate landscape, and began building monuments on a scale previously inaccessible.  Of course, none of this takes away from the amazing manpower required to lift such huge stones without the use of modern machinery - we simply couldn't do it today.

In November 2017, Trethevy Quoit was added to Historic England's Heritage at Risk Register, due to the damage previously caused by fencing and increasing erosion by livestock.  Nowadays, the site is fenced off in its own enclosure.