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Penmyarth Fish Stone/ Llangorse/ Crug Hywel

May 24, 2014

This will be the fourth year that I have worked at the Green Man Festival for what has become Guerilla Archaeology. The festival, which takes place in August, is held at Glanusk Park on the banks of the River Usk near Crickhowell. It is a rich archaeological landscape, and Alan Lane and I have written a brief guide to the archaeology of the Park and its environs, which is available as an information board during the festival. The major prehistoric monument of the Park, the Fish Stone, is not accessible to the public, however, nor is it accessible during the festival. Having never seen it, I wrote to the Park’s estates office and asked to visit. A number of other Guerilla Archaeologists were able to come. Alan Lane kindly agreed to extend the trip with a guided visit to the crannog at Llangorse, and Jacqui Mulville suggested we climb to the hillfort on Table Mountain,Crug Hywel.


Standing at just over 4.2 metres tall, the Fish Stone is an Old Red Sandstone orthostat which looks somewhat like a fish. It is sited in a quiet glade on the banks of the Usk. The worn face in the photo above faces east towards Crickhowell – as Ian Dennis noted, at sunrise and sunset the stone must cast a long shadow of a fish on the ground, while at noon a thin shadow will point due north. It is believed to be Bronze Age, and to form part of a possible group of route markers. There is another standing stone in Glanusk Park – this one is thought to have been early medieval, although it has been moved to a new location in Penmyarth churchyard and engraved with an epitaph to Joseph Henry Russell, the 2nd Baron Glanusk, in 1928.


ImageStanding stone in Penmyarth churchyard

After Glanusk Park, we headed off to Llangorse lake, site of the only crannog in Wales. A visitor centre tells the story of the archaeology – with the pallisaded settlement being built in the late 9th century AD, and periodically extended, until being destroyed in 916 by an army led by Aethelflaed, Queen of Mercia (and King Alfred’s daughter). The reconstructed roundhouse that houses the visitor centre is based on an iron age crannog house from Scotland or Ireland, rather than any of the Llangorse structures. Chained outside the visitor centre is a reconstruction from the 1990s by Time Team of a log boat discovered in the lake. To reach the crannog itself, we hired rowing boats. The site is protected by a stone bund, and there is little to see of the archaeology, although we could make out some planks in the shallow water to the south east of the crannog


The south east of the crannog at Llangorse

After lunch in Crickhowell, we climbed up to Crug Hywel hillfort on Table Mountain, a spur of Pen Cerrig Calch. Walkers are damaging the site by taking stones from the banks to build shelters – two of these were extant when we visited. The hillfort encloses an area of 162 x 59 metres, and has frankly stunning views . A small number of rounded hollows are visible which may be hut sites.


The entrance to Crug Hywel, at the east of the hillfort, and just a little taste of the fabulous views.


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