Ancient Monuments

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Roman Practice Camps 190m west of Llyn Hiraethlyn

A Scheduled Monument in Trawsfynydd, Gwynedd

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Latitude: 52.9143 / 52°54'51"N

Longitude: -3.8732 / 3°52'23"W

OS Eastings: 274136

OS Northings: 336849

OS Grid: SH741368

Mapcode National: GBR 61.NFLZ

Mapcode Global: WH55X.G0TN

Entry Name: Roman Practice Camps 190m W of Llyn Hiraethlyn

Scheduled Date: 27 October 2009

Source: Cadw

Source ID: 978

Cadw Legacy ID: ME261

Schedule Class: Defence

Category: Practice Camp

Period: Roman

County: Gwynedd

Community: Trawsfynydd

Traditional County: Merionethshire


This monument comprises the remains of four well-preserved Roman practice camps that primarily survive as extant earthen banks and ditches with well-defined central entrances and associated tituli, or entrance shielding ditches. The camps were constructed as part of a military training exercise by auxillary soldiers from the primary fort at Tomen-y-Mur. The camps demonstrate particular attention to the corners and entrances, which were the most difficult elements to build.

The monument is of national importance for its potential to enhance our knowledge of Roman military organisation. The monument forms an important element within the wider context of the Roman occupation of Wales and the structures may be expected to contain archaeological information concerning chronology and building techniques, together with a strong probability of environmental evidence. The importance of the monument is further enhanced by the group value and association with the adjacent Roman Road (ME262) and Tomen-y-Mur fort and amphitheatre (ME002 & 078)

The area scheduled consists of four areas, one for each camp, comprising the remains described and an area around each within which related evidence may be expected to survive. The four scheduled areas are square in shape on plan and measure: A - 35 x 35m B - 28 x 27m C - 15 x 15m D - 24 x 24m.

Source: Cadw

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