A castrum was designed to house and protect the soldiers, their equipment and supplies when they were not fighting or marching.
The following table contains the names, grid references, dimensions and enclosed areas of every known Roman fort or fortlet in England. A separate description of each encampment is available by clicking on its name.
| Location of Fort | N.G.Ref. | Dimensions | Area | Type |
|---|---|---|---|---|
| Ambleside/Galava, Cumbria | NY3703 | 300 x 250 ft (91 x 76 m) | 1¾ acres (0.7 ha) | Flavian |
| Ancaster/Causennae, Lincolnshire | SK9843 | x ft ( x m) | acres ( ha) | ! |
| Baylham House/Combretovium, Suffolk | TM1152 | ? ft ? ft | 11 acres 5½ acres | Claudian¢¬¡ Neronian |
| Beckfoot/Bibra, Cumbria | NY0848 | x ft ( x m) | acres ( ha) | ! |
| Benwell/Condercum, Tyne & Wear | NZ2164 | 570 x 400 ft (174 x 122 m) | 5¼ acres (2.1 ha) | Hadrianic |
| Bewcastle/Fanum Cocidi, Cumbria | NY5674 | x ft ( x m) | acres ( ha) | ! |
| Binchester/Vinovia, Durham | NZ2031 | x ft ( x m) | acres ( ha) | ! |
| Birdoswald/Camboglanna, Cumbria | NY6166 | 580 x 400 ft (177 x 122 m) | c.5½ acres (c.2.2 ha) | Hadrianic |
| Blakehope, Northumberland | NY8594 | x ft ( x m) | acres ( ha) | ¢¬ |
| Blennerhasset, Cumbria | NY1941 | c.655 x 560 ft (c.200 x 170 m) | c.8½ acres (c.3.4 ha) | ! |
| Bowes/Lavatris, Northumberland | NY9913 | x ft ( x m) | acres ( ha) | ! |
| Bowness-on-Solway/Maia, Cumbria | NY2262 | ? ft (? m) | 7½ acres (3 ha) | Hadrianic¢¬¡ |
| Bradwell on Sea/Othona, Essex | TM0308 | 522 x c.400 ft (160 x 122 m) | >4¾ acres (>1.9 ha) | ‘Saxon Shore’ Fort |
| Brancaster/Branodunum, Norfolk | TF7844 | c.570 x 570 ft (c.174 x 174 m) | c.7½ acres (c.3 ha) | ‘Saxon Shore’ Fort |
| Brandon Camp, Hereford & Worcester | SO4072 | 800 x 700 ft (244 x 213 m) | c.8¼ acres (3.3 ha) | Claudian |
| Braugham/Brocavum, Cumbria | NY5328 | x ft ( x m) | acres ( ha) | ! |
| Brompton, Shropshire | SO2493 | 650 x 510 ft (c.200 x 155 m) | 7½ acres (c.3 ha) | Claudian |
| Brough/Navio, Derbyshire | SK1882 | x ft ( x m) | 2¼ acres (c.1 ha) | Flavian¢¬¡ |
| Brough/Verteris, Cumbria | NY7914 | ? ft (? m) | ? acres (? ha) | Flavian-Hadrianic ¢¬ |
| Brough by Bainbridge/Virosidum, North Yorkshire | SD9390 | 330 x 270 ft (101 x 82 m) | 2 acres (0.8 ha) | Flavian/Severan |
| Brough on Humber/Petuaria, Humberside | SE9326 | x ft ( x m) | acres ( ha) | ¢¬ |
| Broxtowe, Nottinghamshire | SK5242 | x ft ( x m) | acres ( ha) | ¢¬ |
| Buckton, Hereford & Worcester | SO3973 | c.574 x 451ft (c.175 x 137m) | c.6 acres (2.36 ha) | Trajanic/Hadrianic |
| Burgh-by-Sands I, Cumbria | NY3158 | x ft ( x m) | acres ( ha) | Agricolan/Flavian ¢¬ |
| Burgh-by-Sands II, Cumbria | NY3258 | x ft ( x m) | acres ( ha) | Trajanic ¢¬ |
| Burgh-by-Sands/Aballava, Cumbria | NY3259 | x ft ( x m) | acres ( ha) | Hadrianic-¢¬ |
| Burgh Castle/Gariannum, Norfolk | TG4704 | c.660 x 330 ft (c.200 x 100 m) | c.5 acres (c.2 ha) | ‘Saxon Shore’ Fort |
| Burghwallis, South Yorkshire | SE5112 | x ft ( x m) | acres ( ha) | ¢¬ |
| Burrow in Lonsdale/Calacum, Lancashire | SD6175 | 470 x 445 ft (143 x 135 m) | 4¾ acres (1.94 ha) | Flavian-4th C. |
| Burrow Walls/Magis, Cumbria | NY0030 | x ft ( x m) | acres ( ha) | ¢¬ |
| Bury Barton, Devon | SS7307 | x ft ( x m) | acres ( ha) | ¢¬ |
| Caermote, Cumbria | NY2036 | x ft ( x m) | acres ( ha) | ¢¬ |
| Carkin Moor, Scotch Corner, North Yorkshire | NZ1906 | 350 x 310 ft (c.107 x 94 m) | 2½ acres (1 ha) | 1950 ¢¬¡ |
| Carlisle/Luguvalium, Cumbria | NY3955 | x ft ( x m) | 8 acres (3 ha) | Agricolan-Hadrianic? |
| Carrawburgh/Brocolitia, Northumberland | NY8571 | x ft ( x m) | 3½ acres (1.5 ha) | Hadrianic |
| Carvoran/Magnis, Northumberland | NY6665 | x ft ( x m) | acres ( ha) | ¢¬ |
| Castleford/Lagentium, West Yorkshire | SE4225 | x ft ( x m) | acres ( ha) | ¢¬ |
| Castleshaw/Rigodunum, Greater Manchester | SD9909 | 360 x 300 ft 190 x 160 ft | 2½ acres ¾-acre | Flavian Fort Trajanic Fortlet |
| Castlesteads/Banna, Cumbria | NY5163 | x ft ( x m) | acres ( ha) | ¢¬ |
| Catterick/Cataractonium, North Yorkshire | SE2299 | x ft ( x m) | acres ( ha) | ¢¬ |
| Cawthorn, North Yorkshire | SE7890 | x ft ( x m) | acres ( ha) | ¢¬ |
| Chesterfield, Derbyshire | SK3871 | x ft ( x m) | acres ( ha) | ¢¬ |
| Chesterholm/Vindolanda, Northumberland | NY7766 | x ft ( x m) | acres ( ha) | ¢¬ |
| Chester-le-Street/Concangis, Durham | NZ2751 | 540 x 500 ft (c.165 x 152 m) | 6¼ acres (c.2.5 ha) | Flavian-4th C. |
| Chesters/Cilurnum, Northumberland | NY9170 | 582 x 434 ft (177 x 132 m) | 5¾ acres (2.3 ha) | Hadrianic |
| Chesterton, Staffordshire | SJ8349 | x ft ( x m) | acres ( ha) | Neronian/Flavian¢¬ |
| Chew Green, Northumberland | NT7808 | x ft ( x m) | acres ( ha) | ¢¬ |
| Cirencester/Corinium, Glos. | SP0201 | x ft ( x m) | acres ( ha) | ¢¬ |
| Clifford, Hereford & Worcester | SO2446 | x ft ( x m) | 16 acres (c.6.5 ha) | Claudian?¢¬ |
| Corbridge/Corstopitum, Northumberland | NY9864 | x ft ( x m) | acres ( ha) | ¢¬ |
| Cullompton, Devon | ST0107 | x ft ( x m) | acres ( ha) | ¢¬ |
| Doncaster/Danum, South Yorkshire | SE5703 | x ft ( x m) | acres ( ha) | ¢¬ |
| Dorchester on Thames, Oxfordshire | SU5794 | x ft ( x m) | acres ( ha) | Claudian-Flavian¢¬ |
| Dover/Portus Dubris, Kent | TR3141 | x ft ( x m) | acres ( ha) | ¢¬ |
| Droitwich, Crutch Lane, Hereford & Worcester | SO9063 | x ft ( x m) | acres ( ha) | Claudian¢¬ |
| Droitwich, Dodderhill, Hereford & Worcester | SO8963 | x ft ( x m) | acres ( ha) | Neronian¢¬ |
| Drumburgh/Concavata, Cumbria | NY2659 | x ft ( x m) | acres ( ha) | ¢¬ |
| Eaton House, Staffordshire | SJ9010 | 490 x 490 ft (150 x 150 m) | 5½ acres (2¼ ha) | Claudian? |
| Ebchester/Vindomora, Durham | NZ1055 | x ft ( x m) | acres ( ha) | ¢¬ |
| Elslack/Olenacum, North Yorkshire | SD9249 | 345 x 345 ft 603 x 406 ft | 2¾ acres 5½ acres | Flavian Hadrianic |
| Godmanchester/Durovigutum, Cambridgeshire | TL2470 | x ft ( x m) | 6 acres (c.2.4 ha) | Neronian¢¬ |
| Great Casterton, Leicestershire | TF0009 | x ft ( x m) | 6 acres (c.2.4 ha) | Claudian¢¬ |
| Great Chesterford, Essex | TL5043 | c.1,620 x 1,000 ft (c.494 x 305 m) | c.37 acres (c.15 ha) | Claudian/Neronian |
| Great Chesters/Aesica, Northumberland | NY7066 | x ft ( x m) | 3 acres (1.2 ha) | Hadrianic¢¬ |
| Greensforge, Staffordshire | SO8688 | 460 by 425 ft 550 x 450 ft | 4½ acres 5¾ acres | Claudian Neronian/Flavian |
| Greta Bridge, North Yorkshire | NZ0813 | x ft ( x m) | acres ( ha) | ¢¬ |
| Halton Chesters/Onnum, Northumberland | NY9968 | 440 x 400 ft (c.134 x 122 m) | 4 acres (c.1.6 ha) | Hadrianic |
| Ham Hill, Somerset | ST4816 | x ft ( x m) | acres ( ha) | Claudian¢¬¡ |
| Hardknott/Mediobogdum, Cumbria | NY2101 | 345 x 345 ft (105 x 105 m) | c.2¾ acres (c.1.1 ha) | Trajanic-Hadrianic |
| Hayton, Humberside | SE8145 | x ft ( x m) | acres ( ha) | ¢¬ |
| Hembury, Devon | ST1103 | x ft ( x m) | acres ( ha) | ¢¬ |
| High Rochester/Bremenium, Northumberland | NY8398 | 440 x 420 ft (134 x 128 m) | 4¼ acres (1.7 ha) | Antonine-4th C. |
| Hindwell Farm, Powys | SO2560 | ? ft (? m) | 5 acres (c.2 ha) | Claudio-Neronian¢¬ |
| Hod Hill/Dunum, Dorset | ST8510 | c.570 x 500 ft (c.174 x 152 m) | c.6½ acres (c.2.6 ha) | Claudian |
| Holmes House, Piercebridge, Durham | NZ2115 | 270 x 240 ft (82 x 73 m) | 1½ acres (0.6 ha) | Neronian-Flavian? |
| Housesteads/Vercovicium, Northumberland | NY7868 | 570 x 330 ft (174 x 100 m) | 4¼ acres (1.7 ha) | Hadrianic/Severan |
| Ilchester/Lindinis, Somerset | ST5222 | ? ft (? m) | 3½ acres (c.1.4 ha) | Neronian-Flavian¢¬ |
| Ilkley/Verbeia, West Yorkshire | SE1147 | x ft ( x m) | acres ( ha) | ¢¬ |
| Ixworth, Suffolk | TL9369 | c.625 x 500+ ft (c.190 x 150+ m) | >7¼ acres (>2.9 ha) | Neronian?¢¬ |
| Kirkbride, Cumbria | NY2257 | x ft ( x m) | acres ( ha) | ¢¬ |
| Kirkby Thore/Bravoniacum, Cumbria | NY6326 | x ft ( x m) | acres ( ha) | ! |
| Kirkham, Lancashire | SD4331 | x ft ( x m) | acres ( ha) | ¢¬ |
| Lancaster, Lancashire | SD4761 | x ft ( x m) | acres ( ha) | ¢¬ |
| Lanchester/Longovicium, Durham | NZ1546 | x ft ( x m) | acres ( ha) | ¢¬ |
| Learchild/Alauna, Northumberland | NU1011 | c.800 x 600 ft (c.244 x 183 m) | c.11 acres (c.4.4 ha) | ¢¬ |
| Lease Rigg, North Yorkshire | NZ8104 | x ft ( x m) | acres ( ha) | ¢¬ |
| Leintwardine/Bravonium, Hereford & Worcester | SO3974 | c.860 x 505 ft (c.262 x 154 m) | c.10 acres (c.4 ha) | late-Antonine-Severan |
| Littlechester/Derventio, Derbyshire | SK3537 | x ft ( x m) | acres ( ha) | Neronian¢¬ |
| London/Londinium, Greater London | TQ3281 | c.750 x 705 ft (c.230 x 215 m) | c.12¼ acres (c.5 ha) | Hadrianic-4th C. |
| Low Borrowbridge, Cumbria | NY6001 | x ft ( x m) | acres ( ha) | ¢¬ |
| Lympne/Portus Lemanis, Kent | TR1134 | x ft ( x m) | c.9½ acres (c.3.9 ha) | ‘Saxon Shore’ Fort¢¬ |
| Malton/Derventio, North Yorkshire | SE7971 | x ft ( x m) | acres ( ha) | ¢¬ |
| Manchester/Mamucium, Greater Manchester | SJ8397 | x ft ( x m) | acres ( ha) | Flavian-4th C.¢¬ |
| Marton, Lincolnshire | SK8382 | x ft ( x m) | 2 acres (0.8 ha) | Claudio-Neronian¢¬ |
| Maryport/Alauna, Cumbria | NY0337 | x ft ( x m) | acres ( ha) | ¢¬ |
| Melandra Castle/Ardotalia, Derbyshire | SK0095 | 358 x 328 ft (109 x 100 m) | c.2¾ acres (c.1.1 ha) | Flavian-4th C. |
| Metchley, West Midlands | SP0483 | 656 x 656 ft 510 x 460 ft | 10 acres 5½ acres | Claudian Flavian |
| Moresby/Gabrosentum, Cumbria | NX9821 | x ft ( x m) | acres ( ha) | ¢¬ |
| Nanstallon/Statio Deventiasteno, Cornwall | SX0367 | c.330 x 290 ft (c.100 x 88 m) | c.2¼ acres (c.0.9 ha) | Neronian |
| Newcastle-upon-Tyne/Pons Aelii, Tyne & Wear | NZ2563 | ? ft (? m) | ? acres (? ha) | Hadrianic¢¬ |
| Netherby/Castra Exploratorum, Cumbria | NY3971 | x ft ( x m) | acres ( ha) | ¢¬ |
| Nether Denton, Cumbria | NY5964 | ? ft ? ft | 8 acres ? acres | Acricolan? Trajanic¢¬ |
| Newton Kyme, North Yorkshire | SE4545 | x ft ( x m) | acres ( ha) | ¢¬ |
| North Tawton/Nemetostatio, Devon | SX6699 | 600 x 390 ft (185 x 120 m) | 5½ acres (2.2 ha) | Claudio-Neronian |
| Northwich/Condate, Cheshire | SJ6573 | x ft ( x m) | acres ( ha) | ¢¬ |
| Okehampton, Devon | SX5996 | x ft ( x m) | acres ( ha) | ¢¬ |
| Old Carlisle/Maglona, Cumbria | NY2546 | c.935 x 610 ft (c.285 x 185 m) | c.13 acres (c.5.3 ha) | ! |
| Old Church Brampton, Cumbria | NY5161 | x ft ( x m) | acres ( ha) | ¢¬ |
| Old Penrith/Voreda, Cumbria | NY4938 | x ft ( x m) | acres ( ha) | ! |
| Papcastle/Derventio, Cumbria | NY1031 | x ft ( x m) | acres ( ha) | ! |
| Pevensey/Anderitum, East Sussex | TQ6404 | x ft ( x m) | 8 acres (3.2 ha) | ¢¬ |
| Piercebridge, Durham | NZ2115 | 270 x 240 ft (82 x 73 m) | 1½ acres (0.6 ha) | ! |
| Portchester/Portus Ardaoni, Hampshire | SU6204 | 620 x 610 ft (189 x 186 m) | c.8½ acres (c.3.5 ha) | ‘Saxon Shore’ Fort |
| Ravenglass/Glannoventa, Cumbria | SD0895 | x ft ( x m) | acres ( ha) | ¢¬ |
| Reculver/Regulbium, Kent | TR2269 | x ft ( x m) | acres ( ha) | ‘Saxon Shore’ Fort¢¬ |
| Redhill/Uxacona, Shropshire | SJ7211 | 300 x 230 ft c.580 x 360 ft | 1½ acres 4¾ acres | ! |
| Rhyn Park, Shropshire | SJ3037 | x ft ( x m) | acres ( ha) | Flavian¢¬ |
| Ribchester/Bremetenacum, Lancs | SD6535 | 550 x 410 ft (168 x 125 m) | 5¼ acres (c.2 ha) | Flavian-Severan |
| Richborough/Rutupiae, Kent | TR3260 | c.565 x 500 ft (c.172 x 152 m) | c.6½ acres (c.2.6 ha) | ‘Saxon Shore’ fort |
| Risingham/Habitancum, Northumberland | NY8986 | ? ft (? m) | ? acres (? ha) | ! |
| Rocester, Staffordshire | SK1139 | x ft ( x m) | acres ( ha) | ¢¬ |
| Rudchester/Vindobala, Northumberland | NZ1167 | 515 x 385 ft (157 x 117 m) | c.4½ acres (c.1.8 ha) | Hadrianic |
| Shapwick, Dorset | ST9402 | x ft ( x m) | acres ( ha) | ¢¬ |
| Slack/Cambodunum, West Yorkshire | SE0817 | 256 x 256 ft (78 x 78 m) | 1½ acres (0.6 ha) | Flavian-Antonine |
| South Shields/Arbeia, Tyne & Wear | NZ3667 | x ft 620 x 320 ft | acres 4½ acres | Hadrianic¢¬ Severan |
| St. Albans/Verulamium, Hertfordshire | TL1307 | ? ft (? m) | ? acres (? ha) | ¢¬ |
| Stanway, Essex | TL9622 | ? ft (? m) | ? acres (? ha) | Claudian¢¬ |
| Stanwix/Uxelodunum, Cumbria | NY4057 | x ft ( x m) | acres ( ha) | ¢¬ |
| Stretford Bridge, Shropshire | SO4284 | ? ft (? m) | 3¾ acres (1.5 ha) | Claudian¢¬ |
| Stretton Grandison, Hereford & Worcester | SO6443 | ? ft (? m) | c.4¾ acres (c.2 ha) | Claudian¢¬ |
| Stretton Mill, Staffordshire | SJ8911 | 430 by 365 ft (131 x 111 m) | c.3½ acres (c.1.4 ha) | Claudian?¢¬ |
| Templeborough, South Yorkshire | SK4191 | 495 x 490 ft 440 x 380 ft | 5½ acres 3¾ acres | Neronian Trajanic? |
| The Lunt, Warwickshire | SP3475 | 300 x 550 ft 300 x 370 ft 300 x 550 ft | 3¾ acres 2½ acres 3¾ acres | Neronian Domitianic c. AD 260 |
| Tiverton, Devon | SS9514 | x ft ( x m) | acres ( ha) | ¢¬ |
| Trent Vale, Staffordshire | SJ8643 | x ft ( x m) | acres ( ha) | ¢¬ |
| Troutbeck, Cumbria | NY3827 | 390 x 390 ft 275 x 275 ft | 3¾ acres 1¾ acres | Flavian fort later fortlet |
| Tweedmouth, Berwick-on-Tweed, Northumberland | NT9952 | x ft ( x m) | acres ( ha) | fort 1951 ¢¬ |
| Waddon Hill, Dorset | ST4401 | x ft ( x m) | acres ( ha) | ¢¬ |
| Wall/Letocetum, Staffordshire | SK1006 | ? ft (? m) | 2 acres (0.8 ha) | Trajanic/Hadrianic¢¬ |
| Wall Town, Shropshire | SO6978 | ? ft ? ft | ? acres 4½ acres | Neronian fortlet¢¬ Flavian fort |
| Wallsend/Segedunum, Tyne & Wear | NZ3066 | 453 x 394 ft (138 x 120 metres) | 4 acres (1.65 ha) | Hadrianic |
| Walton Castle, Suffolk | TM3235 | x ft ( x m) | acres ( ha) | ‘Saxon Shore’ fort¢¬ |
| Watercrook/Alavana, Cumbria | SD5190 | ? ft (? m) | ? acres (? |