About
Y Gaer — a name meaning 'The Fort' in Welsh — is the cultural flagship of Powys County Council, bringing together the Brecknock Museum and Art Gallery with a remarkable archaeological site to create one of the most engaging heritage destinations in mid-Wales. Situated in the market town of Brecon, which serves as the gateway to the Brecon Beacons National Park, the museum complex encompasses a beautifully renovated Victorian civic building alongside the remains of a Roman auxiliary fort and amphitheatre at the nearby Gaer site on the banks of the River Usk.
The ancient Roman fort of Cicucium — known locally as Y Gaer — was established in around AD 75 as part of the Roman military network controlling the Welsh interior. Garrisoned by auxiliary cavalry units recruited from across the Roman Empire, including a unit from the Iberian Peninsula and a Spanish cavalry regiment, the fort stood at the junction of several Roman roads and served as an important centre of Roman administrative and military power in what is now Powys. Excavations over many decades have revealed the fort's full extent, including the headquarters building, granaries, barracks, and a civilian settlement outside the walls. The amphitheatre, one of the few examples in Wales, adds further archaeological significance to the site.
The museum building in Brecon houses a wide-ranging collection spanning fine art, natural history, archaeology, and social history. The fine art collection is one of the finest in mid-Wales, with strengths in Welsh landscape painting, nineteenth-century British art, and contemporary Welsh works. Artists represented include significant names in the Welsh artistic tradition alongside broader British works acquired over more than a century of collecting.
The natural history collections document the extraordinary diversity of the Brecon Beacons — one of the most ecologically significant upland landscapes in Wales — with displays on the area's geology, flora, and fauna, from the rare arctic-alpine plants of the high summits to the red kites, otters, and rare invertebrates of the river valleys. The social and local history collections trace life in the Brecknock area from prehistoric times through the medieval Welsh kingdoms to the agricultural and industrial heritage of more recent centuries.
Y Gaer opened in its current combined form following a major Heritage Lottery Fund-supported renovation completed in 2018, which transformed the museum into a modern, accessible facility while respecting the character of the original Victorian building. The renovation created new gallery spaces, improved educational facilities, and established a programme of creative engagement that positions Y Gaer as a dynamic cultural venue for all communities across Powys.
Categories:
Highlights
The Roman Fort of Cicucium (Y Gaer Site)
The Y Gaer Roman fort was established around AD 75 as part of Rome's military network across Wales, garrisoned by auxiliary cavalry units including the Vettonian Spanish cavalry regiment. Excavations have revealed the fort's full extent, including the headquarters building (principia), granaries, barracks, and the via principalis — the main internal road.
Visitors can walk around the preserved earthworks and stone wall remains, which give a remarkable impression of the scale and organisation of a Roman auxiliary fort in the Welsh uplands.
The fort's strategic position above the River Usk underlines its role controlling the valley and road network.
The Amphitheatre at Y Gaer
One of only a handful of amphitheatres known in Wales, the Y Gaer amphitheatre survives as an earthwork feature adjacent to the fort. Such structures served the entertainment and training needs of the garrison — hosting gladiatorial contests, animal hunts, military displays, and public assemblies. The presence of an amphitheatre at a relatively modest auxiliary fort suggests the garrison at Cicucium enjoyed a fuller Roman lifestyle than might be expected in this upland Welsh setting, and speaks to the extent to which Roman culture penetrated even the more remote military stations of the province.
Fine Art Collection — Welsh and British Masters
Y Gaer holds one of the finest art collections in mid-Wales, with particular strength in Welsh landscape painting from the nineteenth and early twentieth centuries. The collection includes works by artists who sought to capture the dramatic landscape of the Brecon Beacons, the Wye Valley, and the broader Welsh countryside in the Romantic tradition, alongside Victorian narrative and genre paintings and examples of the Arts and Crafts tradition in Wales.
Contemporary Welsh artists are also represented, and the museum maintains an active acquisitions programme to ensure the collection continues to grow and reflect living Welsh creative culture.
Natural History of the Brecon Beacons
The Brecon Beacons National Park is one of the most ecologically significant upland landscapes in Wales and Britain, and Y Gaer's natural history galleries document its extraordinary diversity with clarity and engagement. Geological displays explain the Old Red Sandstone that gives the Beacons their characteristic shape and colour, while ecological displays explore the arctic-alpine plants of the summits, the blanket bogs of the moorland plateau, and the rich wildlife of the river valleys — red kites, polecats, otters, and rare invertebrates all feature.
The relationship between landscape, ecology, and human land use over millennia is a connecting thread.
Collections
Brecknock Through the Ages
A comprehensive survey of human activity in the Brecknock area from prehistoric times to the twentieth century, drawing on the full range of the museum's archaeology, social history, and local history collections to tell the story of this distinctive corner of Wales.
Art of the Beacons
The permanent art gallery presenting highlights from the Y Gaer fine art collection, with particular focus on Welsh landscape painting, Victorian British art, and contemporary Welsh work. Includes rotating displays from the reserve collection.
The Beacons Alive: Natural History of a National Park
An immersive natural history gallery exploring the geology, ecology, and wildlife of the Brecon Beacons, using specimens, models, photography, and multimedia content to bring this upland landscape and its extraordinary biodiversity to life.
Current Exhibitions
A contemporary art exhibition featuring works by emerging and established Welsh artists responding to the themes of landscape, memory, and belonging in the Brecon Beacons region. Includes painting, sculpture, photography, and mixed media works commissioned for Y Gaer.