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The Roman Military in Britain

Part#3 : Forts and Fortlets in Wales

The following table contains the names, grid references, dimensions and enclosed areas of every known Roman fort or fortlet in Wales. A separate description of each encampment will soon be available by clicking on its name.

Location of FortN.G.Ref.DimensionsAreaType
Abergavenny/Gobannium, GwentSO2914 x ft
( x m)
acres
( ha)
Bryn y Gefeiliau, GwyneddSH7457 x ft
( x m)
c.4 acres
(c.1.6 ha)
Caegaer, PowysSN8281 x ft
( x m)
acres
( ha)
Caerau, PowysSN9250 x ft
( x m)
acres
( ha)
Caergai, GwyneddSH8731420 x 420 ft
(c.128 x 128 m)
4½ acres
(1.7 ha)
Flavian-Hadrianic
Caerhun/Canovium, GwyneddSH7770410 x 410 ft
(125 x 125 m)
3¾ acres
(c.1.5 ha)
Flavian =>
Caernarfon/Segontium, GwyneddSH4862510 x 415 ft
(155 x 126 m)
4¾ acres
(c.2 ha)
Flavian =>
Caerphilly, DyfedST1688 x ft
( x m)
acres
( ha)
Caersws, PowysSO0292 x ft
( x m)
acres
( ha)
Cardiff, South GlamorganST1876650 x 600 ft
(198 x 183 m)
c.9 acres
(c.3.6 ha)
Flavian =>
Carmarthen/Moridunum, DyfedSN4120425 x 330 ft
(130 x 100 m)
3¼ acres
(1.3 ha)
Claudian-Severan
Castell Collen, PowysSO0562595 x 365 ft
365 x 365 ft
5 acres
3 acres
Flavian
Antonine
Coelbren, West GlamorganSN8510440 x 430 ft
(134 x 131 m)
4¼ acres
(1.8 ha)
Flavian/Antonine
Colwyn Castle, PowysSO1053 x ft
( x m)
acres
( ha)
Dolau Gaer, PowysSO0166 x ft
( x m)
acres
( ha)
Dynevor Park, Llandeilo, DyfedSN6222c.490 x 330 ft
(c.150 x 100 m)
c.3¾ acres
(c.1.54 ha)
Agricolan?
Ffridd, ClwydSJ2854 x ft
( x m)
acres
( ha)
Forden Gaer/Levobrinta, PowysSO2098 x ft
( x m)
acres
( ha)
Gelligaer, West GlamorganST1397404 x 385 ft
(123 x 117 m)
3½ acres
(1.4 ha)
Flavian-Severan
Loughor/Leucarum, West GlamorganSS5697 x ft
( x m)
acres
( ha)
Llandovery/Alabum, DyfedSN7635 x ft
( x m)
acres
( ha)
Llanfor, GwyneddSH9336 x ft
( x m)
acres
( ha)
Llanio/Bremia, DyfedSN6456 x ft
( x m)
acres
( ha)
Llansantffraid, PowysSJ2220? ft
(? m)
2¾ acres
(1.1 ha)
Llwyn y Brain, PowysSO0492? ft
(? m)
9¼ acres
(3.76 ha)
Neath/Nidum, West GlamorganSS7497 x ft
( x m)
acres
( ha)
Penllwyn, DyfedSN6580 x ft
( x m)
7 acres
(2.8 ha)
Penllystyn, GwyneddSH4844 x ft
( x m)
acres
( ha)
Pennal/Maglona, GwyneddSH7000 x ft
( x m)
acres
( ha)
Pen y Darren, Mid GlamorganSO0506 x ft
( x m)
acres
( ha)
Pen y Gaer, PowysSO1621 x ft
( x m)
acres
( ha)
Pumpsaint/Luentinum, DyfedSN6540 x ft
( x m)
c.5½ acres
(2.25 ha)
Prestatyn, ClwydSJ0682 x ft
( x m)
acres
( ha)
Ruthin, ClwydSJ1258 x ft
( x m)
acres
( ha)
Tomen y Mur, GwyneddSH7038510 x 390 ft
(c.155 x 120 m)
4½ acres
(1.7 ha)
Flavian-Hadrianic
Trawsgoed, DyfedSN6772540 x 410 ft
(c.165 x 125 m)
5 acres
(2 ha)
!
Usk/Burrium, GwentSO3700 x ft
( x m)
acres
( ha)
Y Gaer/Cicucium, PowysSO0029615 x 460 ft
(187 x 140 m)
6½ acres
(2.6 ha)
Neronian =>