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 Fort N.G.Ref. Dimensions Area Type
Abergavenny/Gobannium, Gwent SO2914 x ft ( x m) acres ( ha) ¢¬ 
Bryn y Gefeiliau, Gwynedd SH7457 x ft ( x m) c.4 acres (c.1.6 ha) ¢¬ 
Caegaer, Powys SN8281 x ft ( x m) acres ( ha) ¢¬ 
Caerau, Powys SN9250 x ft ( x m) acres ( ha) ¢¬ 
Caergai, Gwynedd SH8731 420 x 420 ft (c.128 x 128 m) 4½ acres (1.7 ha) Flavian-Hadrianic
Caerhun/Canovium, Gwynedd SH7770 410 x 410 ft (125 x 125 m) 3¾ acres (c.1.5 ha) Flavian =>
Caernarfon/Segontium, Gwynedd SH4862 510 x 415 ft (155 x 126 m) 4¾ acres (c.2 ha) Flavian =>
Caerphilly, Dyfed ST1688 x ft ( x m) acres ( ha) ¢¬ 
Caersws, Powys SO0292 x ft ( x m) acres ( ha) ¢¬ 
Cardiff, South Glamorgan ST1876 650 x 600 ft (198 x 183 m) c.9 acres (c.3.6 ha) Flavian =>
Carmarthen/Moridunum, Dyfed SN4120 425 x 330 ft (130 x 100 m) 3¼ acres (1.3 ha) Claudian-Severan
Castell Collen, Powys SO0562 595 x 365 ft 365 x 365 ft 5 acres 3 acres Flavian Antonine
Coelbren, West Glamorgan SN8510 440 x 430 ft (134 x 131 m) 4¼ acres (1.8 ha) Flavian/Antonine
Colwyn Castle, Powys SO1053 x ft ( x m) acres ( ha) ¢¬ 
Dolau Gaer, Powys SO0166 x ft ( x m) acres ( ha) ¢¬ 
Dynevor Park, Llandeilo, Dyfed SN6222 c.490 x 330 ft (c.150 x 100 m) c.3¾ acres (c.1.54 ha) Agricolan?
Ffridd, Clwyd SJ2854 x ft ( x m) acres ( ha) ¢¬ 
Forden Gaer/Levobrinta, Powys SO2098 x ft ( x m) acres ( ha) ¢¬ 
gelligaer, West Glamorgan ST1397 404 x 385 ft (123 x 117 m) 3½ acres (1.4 ha) Flavian-Severan
Loughor/Leucarum, West Glamorgan SS5697 x ft ( x m) acres ( ha) ¢¬ 
Llandovery/Alabum, Dyfed SN7635 x ft ( x m) acres ( ha) ¢¬ 
Llanfor, Gwynedd SH9336 x ft ( x m) acres ( ha) ¢¬ 
Llanio/Bremia, Dyfed SN6456 x ft ( x m) acres ( ha) ¢¬ 
Llansantffraid, Powys SJ2220 ? ft (? m) 2¾ acres (1.1 ha) ¢¬ 
Llwyn y Brain, Powys SO0492 ? ft (? m) 9¼ acres (3.76 ha) ¢¬ 
Neath/Nidum, West Glamorgan SS7497 x ft ( x m) acres ( ha) ¢¬ 
Penllwyn, Dyfed SN6580 x ft ( x m) 7 acres (2.8 ha) ¢¬ 
Penllystyn, Gwynedd SH4844 x ft ( x m) acres ( ha) ¢¬ 
Pennal/Maglona, Gwynedd SH7000 x ft ( x m) acres ( ha) ¢¬ 
Pen y Darren, Mid Glamorgan SO0506 x ft ( x m) acres ( ha) ¢¬ 
Pen y Gaer, Powys SO1621 x ft ( x m) acres ( ha) ¢¬ 
Pumpsaint/Luentinum, Dyfed SN6540 x ft ( x m) c.5½ acres (2.25 ha) ¢¬ 
Prestatyn, Clwyd SJ0682 x ft ( x m) acres ( ha) ¢¬ 
Ruthin, Clwyd SJ1258 x ft ( x m) acres ( ha) ¢¬ 
Tomen y Mur, Gwynedd SH7038 510 x 390 ft (c.155 x 120 m) 4½ acres (1.7 ha) Flavian-Hadrianic
Trawsgoed, Dyfed SN6772 540 x 410 ft (c.165 x 125 m) 5 acres (2 ha) !
Usk/Burrium, Gwent SO3700 x ft ( x m) acres ( ha) ¢¬ 
Y Gaer/Cicucium, Powys SO0029 615 x 460 ft (187 x 140 m) 6½ acres (2.6 ha) Neronian =>