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Castell Caer Seion

Conwy, Wales · Atlas WA2621

Castell Caer Seion is a contour fort in Conwy, Wales.

Other names on the record: Castell Caer Lleion, Caer Sion, Mynydd y Dref, and Conwy Mountain.

It is recorded as extant, with a univallate rampart form, surface evidence of earthen bank and stone wall, and an enclosed area of 2.7 hectares.

Banks or ramparts are the remains most likely to be visible.

The topographic record places it on a hilltop and at 230 m.

The aspect is recorded as level.

Recorded land use includes pasture and heather moorland.

Dating evidence is recorded for 400 BC–AD 50 (Artefactual, C14, and Morphology/Earthwork/Typology). Reliability is recorded as B - Medium.

A scheduled monument number is recorded (CN012).

Location

Atlas number
WA2621 (2621)
Country
Wales
Current county or unitary authority
Conwy
Historic county
Caernarfonshire
Parish, community, or townland
Conwy
National Grid reference
SH76047784
Latitude
53.28298
Longitude
-3.86083
Altitude
230 m

Form and condition

Type
contour fort
Condition
Extant
Morphology
univallate
Complete rampart circuit
Yes
Number of ramparts
1
Number of ditches
1
Possible original entrances
2
Breaks through the ramparts
2
Enclosed area
2.7 ha
Enclosing works, as visible
earthen bank and stone wall
Enclosing works, excavated
earthen bank and stone wall
Also recorded
annex, multi-period enclosure system, and ditches
Entrance forms
Simple Gap (South)

Landscape

Topographic position
hilltop
Aspect
level
Land use
pasture and heather moorland

Dating

Dating
400 BC–AD 50
Dating evidence
Artefactual, C14, and Morphology/Earthwork/Typology
Dating reliability
B - Medium

Interior and investigation

Interior surface
round stone structures and curvilinear platforms
Interior excavation
roundhouses
Finds
lithics
Investigations
1st Identified Map Depiction (1889); Excavation (1951); Other (1967); Other (1992); Excavation (2008); Other (1970-1971); Other (1988-2005); Other (2004-2005)

Identifiers

Scheduled monument number
CN012
HER
Gwynedd 2816
National record
record SH 77 NE 3; monument 95279
Wikidata
Q31119236

Sources

References

  1. Brown, I. 2009. Beacons in the landscape. The hillforts of England and Wales, Oxford: Windgather Press/Oxbow Books.
  2. Griffiths, W. E. and Hogg, A. H. A. 1956, The Hillfort on Conway Mountain, Caernarvonshire, Arch Camb, 105, 49-80.
  3. Picton, H. 1909. Caer Seiont, Conway Mountain, Arch Camb, 6th Series, 9, 500- 504.
  4. RCAHMW 1956. Caernarvonshire Vol I: East, A survey and inventory by the Royal Commission on Ancient and Historical Monuments in Wales and Monmouthshire, London: HMSO.
  5. Smith, G. 2011. Re-assessment of two hillforts in North Wales: Pen-y-Dinas, Llandudno, and Caer Seion, Conwy, Arch Wales, 51, 61-78.