| 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 => |
|---|
