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Historic England Research Records

Cronk Ny Merriu

Hob Uid: 30784
Location :
Isle Of Man
Middle
Santon
Grid Ref : SC3172070480
Summary : Iron Age promontory fort. Norse longhouse or lookout. Probable Early Mediaeval occupation. Former interpretations of the longhouse include its being a keeill. Lintel graves have been found in the vicinity.
More information : (SC 31727048) Tumulus (NR) (Cronk-ny-Merriu) (NAT) (1)

'Cronk ny Marroo'. Ord. Surv. particulars: 'A remarkable tumulus
situated on the NE headland of Port Grenaugh; it is of oblong shape
and on the SW side are traceable the foundations of a small oblong
building. Major Becon, on whose land it stands, had the tumulus
opened two years ago, but nothing was found. Tradition asserts it to
be an ancient burial place. (a)

'The Cronk-na-Myrriow is a good specimen of the barrow of the
sepulchral kind as we may presume from its name. It stands on the top of the sea cliffs, on the left of the creek of Grainich, in the
Parish of Santan. It is an oblong and regularly formed turfy mound,
40 ft long, 20 ft broad and 12 ft high, placed across the isthmus of asmall insulated crag, which overhangs the gravelly beach of the littleestuary of Grainich, and occupies the approach to the edge of the cliff so completely as to leave only a narrow and precarious footpath on the SE aspect. On the broogh behind it and inward, the mud foundations of a small oblong and frail tenement covered with a
luxuriant verdure are very distinctly traceable, occupying nearly all
the flat summit of the precipice, and combining with its simple
solitude a degree of security rarely aimed at in such structures, this could only have been used as a religious retreat of no very ostentatious kind, perhaps the cell of a hermit', Oswald's Vestigia.
(b)

Cronk ny Merriu, marked as a 'Tumulus' but Kermode added that it
"suggests a fortified position rather than a Tumulus". (3)

A chapel (Keeill)-site and burial ground is also suggested at this
position. "The late Mr Bacon some years ago came across some lintel
graves in a field close to Cronk ny Marroo", and the Keeill site is
inferred by Oswald's description (Authy 2b) of 'mud foundations etc'
(2) [later proved to be a Norse long house - see below]. (2 - 3)

This site is similar to the 1-800 AD (Poss 5-6th C) Promontory Fort at Close ny Chollagh - SC 26 NW 1. It utilises a precipitous cliff face on three sides and across the open side in the north-east a strong bank with an inner height of 2.3m and an outer height of 3.0m has beenconstructed. There is an outer ditch the strongest portion of which is 5.0m wide and 1.0m deep from the outer lip. Both the bank and ditch have been eradicated west of their present western terminals, ifthey ever continued to the cliff edge. Excavated by P S Gelling 1950-52. Within the interior and orientated NW-SE are the turf capped dry-stone walls of a Viking Long house whose floor is below the level of the surrounding ground. The present internal max height is 1.2m. Outside the fort in the north is the model of the long house as a ruin. There is no internal periphery bank, such a bank being unnecessary. The so called tumulus (Authy 2) is obviously the rampart of the fort.

A notice indicates that all features are protected monuments. (4)

SC 317704. Cronk ny Merriu is a small Iron Age promontory fort,
excavated in 1950-52 by P S Gelling. The dump rampart was faced on
the inside by a vertical timber revetment set in a stone-lined trench,behind which was a row of five, deep, post-holes which could have supported a platform or raised walk. The rampart was preceded by either one or two palisade phases; there were two palisade trenches under it which could have either co-existed or succeeded one another. After the revetment had collapsed a long house of Norse type, was built roughly parallel to the rampart, (5)(6) with slightly bowed walls and benches along its sides. It was shorter than the average length for this type of house, in order to fit into the area of the promontory, and lacked the kitchen end. It has been interpreted as a lookout rather than a dwelling (7). No dating evidence was found during the excavations but in 1970, a halfpenny of Edward I, dating 1280-1, was found in the back-fill of the dig and presumably indicates some occupation of the site after the end of Norse rule on the Island [in 1265] [c.f. with Early Medieval long house at Cass ny Hawin - SC 26 NE 9] (5)(6) Plan. (5 - 7)

(SC 31727048) Cronk ny Merriu (NR) (8)


Sources :
Source Number : 1
Source :
Source details : OS 6" 1870
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Source Number : 2
Source :
Source details : Manx Archaeological Survey 5th Rep 1918 (1935) 24-25 fn (P M C Kermode)
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Source Number : 2a
Source :
Source details : Original OS Object Name Book (1866-72) [Destroyed 1940]
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Source Number : 2b
Source :
Source details : 'Vestigia' - Manx Society Publication 5 1860 51 (H R Oswald)
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Source Number : 3
Source :
Source details : List of Manx Antiquities 1930 68 (P M C Kermode)
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Source Number : 4
Source :
Source details : F1 DE 05.12.55
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Source Number : 5
Source :
Source details : Prehistoric Sites in the Isle of Man 1971 (Ed A Cubbon) 12-13 Plan (P S Gelling)
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Source Number : 6
Source :
Source details : 1952 (P S Gelling)
Page(s) : 307-15
Figs. :
Plates :
Vol(s) : 5 No.3
Source Number : 7
Source :
Source details : Archaeology of Late Celtic Britain and Ireland 1975 211 (L Laing)
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Source Number : 8
Source :
Source details : OS 6" 1957
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Monument Types:
Monument Period Name : Iron Age
Display Date : Iron Age
Monument End Date : 43
Monument Start Date : -800
Monument Type : Promontory Fort
Evidence : Earthwork
Monument Period Name : Early Medieval
Display Date : Early Medieval
Monument End Date : 1066
Monument Start Date : 410
Monument Type : Cemetery, Chapel, Fort, Longhouse, Lintel Grave
Evidence : Conjectural Evidence, Find
Monument Period Name : Medieval
Display Date : Medieval
Monument End Date : 1540
Monument Start Date : 1066
Monument Type : Lookout
Evidence : Conjectural Evidence

Components and Objects:
Related Records from other datasets:
External Cross Reference Source : National Monuments Record Number
External Cross Reference Number : SC 37 SW 29
External Cross Reference Notes :

Related Warden Records :
Related Activities :
Associated Activities :
Activity type : FIELD OBSERVATION (VISUAL ASSESSMENT)
Start Date : 1955-12-05
End Date : 1955-12-05