Historic England research records

Historic England Research Records

Sea Brows Milefortlet 23
Hob Uid: 9020
Location : Cumbria Allerdale Maryport
Grid Ref : NY0446638002
Summary : The site of Roman milefortlet 23, no surface remains are visible. The site was discovered by analysis of air photographs and verified by geophysical survey. Part of the Roman frontier defences supporting Hadrian's Wall on the Cumbrian coast.
More information : Cropmark of outer ditch of Roman Mile Fortlet 23 visible at NY 0447 3799. A break/entrance is visible in the SE side whilst the NE side appears to have been lost by erosion to the cliff face. Its size is circa 45 by 40 m. The cropmarks are quite faint and show no internal detail. (1) NY 0446 3799. Visible as a sub-square ditched enclosure on air photographs (2a). Geophysical survey done in January 1994 (2b) showed three sides of a surrounding ditch to the milefortlet (centred at NY 0445 3800), the fourth, west side having been destroyed by the erosion of the cliff. There are no visible remains of this milefortlet; the situation is on a south-east facing slope at the edge of a steep cliff, on the hedge line between two pasture fields. There has been extensive quarrying along the coast from here as far as the fort at Maryport, and it is unclear to what extent the cliff is natural or a result of the quarrying. (2) Mile Fortlet 23 has been mapped as part of the Hadrian's Wall NMP project. It is visible as a cropmark on air photographs. It is as described above - only three sides of the external ditch are visible, the north-west side being lost from erosion of the cliff. The ditch is approximately 4 metres wide and there is an entrance facing to the south-east. (4) The area of Maryport fort and vicus, incorporating the area of Milefortlet 23, was surveyed between 2000-2004 by Timescape Surveys using magnetometer and resistivity geophysical survey. Features within the milefortlet were detected. (5) Air photograph in 'Hadrian's Wall from the air'. (6) Featured on the English Heritage map of Hadrian's Wall 2010. (7)

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Source Number : 1
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Source details : Cumbria and Lancashire Archaeology Unit NY 03 NW (GE Lee)
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Source Number : 1a
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Source details : (CS 124-22A-24A and 26A-29A) held by Manchester University (CCC 2007M 15 16 28 29) held by Cumbria County Council
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Source Number : 2
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Source details : Keith Blood and Colin Lofthouse/26-FEB-1993/RCHME: Cumberland Coast Project.
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Source Number : 2a
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Source details : NMR: NY 0437/15-17, 19-20 (Jones GDB: 28-JUL-1977)
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Source Number : 2b
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Source details : Roman Defences of the Cumbrian Coast: Geophysical Survey, Report No 9 4/08 (Geophysical Surveys of Bradford)
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Source Number : 3
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Source details : 21/02/1997
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Source Number : 4
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Source details : NMR NY 0438/2 (9358/29A) 28-JUL-1977
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Source Number : 5
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Source details : The Roman fort and vicus at Maryport: geophysical survey, 2000-2004 (J.A.Biggins, D.J.A.Taylor). Cumberland and Westmorland Antiquarian and Archaeological Society Extra Series. 2004, Vol 31, pages 102-133.
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Source Number : 6
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Page(s) : 131
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Source Number : 7
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Monument Types:

Monument Period Name : Roman
Display Date : Roman
Monument End Date : 410
Monument Start Date : 43
Monument Type : Milefortlet
Evidence : Sub Surface Deposit

Components and Objects:

Related Records from other datasets:

External Cross Reference Source : Scheduled Monument Legacy (National No.)
External Cross Reference Number : 27725
External Cross Reference Notes :

External Cross Reference Source : SMR Number (Cumbria)
External Cross Reference Number : 16515
External Cross Reference Notes :

External Cross Reference Source : National Monuments Record Number
External Cross Reference Number : NY 03 NW 30
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Related Warden Records :

Related Activities :

Associated Activities :
Activity type : EVALUATION
Start Date : 1963-01-01
End Date : 1963-12-31

Associated Activities :
Activity type : MEASURED SURVEY
Start Date : 1993-01-19
End Date : 1994-02-02

Associated Activities :
Activity type : GEOPHYSICAL SURVEY
Start Date : 1994-01-01
End Date : 1994-12-31

Associated Activities :
Activity type : AERIAL PHOTOGRAPH INTERPRETATION
Start Date : 2002-01-01
End Date : 2008-12-31

Historic England Research Records

Sea Brows Milefortlet 23