One of three barrows in a cemetery group consisting of three separate round barrows or bowl barrows in a ridge top position. Each are now grass-covered, ditchless mounds. PRN0857.00/B measures 13.0 metres diameter by 0.5 metres high, with stones on the surface.

One of three barrows in a cemetery group consisting of three separate round barrows or bowl barrows in a ridge top position. Each are now grass-covered, ditchless mounds. PRN 0857.00/C measures 17.0 metres in diameter by 0.6 metres high.  It was subject to archaeological excavation by the University of Leicester and Newcastle University in 2017 and a cist, a collared urn and a number of flint artefacts, all of Bronze Age type, were found.

Medieval motte. The site is known variously as Cronk Howe Mooar, Cronk Mooar, Cronk y Moar and Fairy Hill. It is a steep-sided oval mound measuring 50m NW-SE by 42m NE-SW, and standing almost 10m high. A spur of raised ground extends to the east of the mound, curving round to the north-east and petering out. When surveyed by the Ordnance Survey in 1868, a ditch was apparent for much of the circumference of the mound, which was up to 10m wide. For the most part it is now less pronounced, but still clearly separates the mound from its spur to the east. It has been suggested that the mound, the ditch and even the spur have been affected by landscaping connected with the former operation of a golfcourse. Excavations in 1912 by Kermode and Herdman suggested that the mound itself was natural, and found a structure on its summit. The origins of the mound have since been called into question and it is now thought to be largely artificial, though its location may take advantage of a slight underlying natural hillock; the heavy clay soil undoubtedly enhances the defensibility of the site. Investigation of the summit showed that there was a roughly central rectilinear structure sunken in the centre of the mound. This measured 5.5 by 3m internally, and was revetted inside by orthostats and roughly coursed walling. The edge of the summit was crowned by a low rampart which provided the actual means of defence. Apart from a single iron implement (possibly a knife), no artefacts were recovered which could provide an accurate date for the site. The spur lying to the east of the mound was not investigated. It may represent the fragmentary remains of a bailey - some of the surrounding field boundaries may conceivably indicate the remainder of the bailey enclosure - or the much reduced vestiges of a ramp leading towards the summit. Some kind of bridge, since lost, may have spanned the ditch. Since Kermode and Herdman's excavations, attention has been drawn to the record in the Chronicle of the Kings of Man and the Isles that Magnus, king of Norway, who visited in 1098, erected forts and imported timber for the purpose. In the context of this reference, it seems natural to suggest that Magnus may have left behind at least one motte of normal 11th or early 12th century character. Following his excavations at Ballagawne, Gerhard Bersu suggested that the stone structure on the summit might be a defended granary similar to the building he uncovered at the Cashtal.

The conjectured site of a burial ground associated with an early medieval keeill or chapel believed to exist at Cronk Keeill Traie (Hill of the Keeill by the Strand). The site has long been ploughed over and no information regarding the keeill could be found. A stone, thought to have been taken from its burial ground, has been kept at Cronkbrec house nearby.

Traces of reddened soil, iron slag and charcoal (but no pottery) similar to that found at the medieval iron smelting site at Ballavarry, was found in 1983 at Cronk Keeill Traie. The site is thought very suitable for a furnace, being well exposed to the prevailing wind.

Traces of reddened soil, iron slag and charcoal (but no pottery) similar to that found at the medieval iron smelting site at Ballavarry, was found in 1983 at Cronk Keeill Traie. The site is thought very suitable for a furnace, being well exposed to the prevailing wind.

Traces of reddened soil, iron slag and charcoal (but no pottery) similar to that found at the medieval iron smelting site at Ballavarry, was found in 1983 at Cronk Keeill Traie.

A natural hill of sand and gravel at this location rises some 15 metres above sea-level. It is known as Cronk Keeill Traie (Hill of the Keeill by the Strand). The site has long been ploughed over and no information regarding the keeill could be found.

A natural hill of sand and gravel at this location rises some 15 metres above sea-level. It is known as Cronk Keeill Traie (Hill of the Keeill by the Strand). The site has long been ploughed over and no information regarding the keeill could be found.

A natural hill of sand and gravel at this location rises some 15 metres above sea-level. It is known as Cronk Keeill Traie (Hill of the Keeill by the Strand). The site has long been ploughed over and no information regarding the keeill could be found.

This slab was found in 1925 at Ballalough (IOMHER 0933.00). It bears a simple pecked and gouged cross on one face.

A damaged burial mound at this location has been interpreted as an Early Medieval Viking burial site.  The flat topped, bramble covered barrow measures 17.0 metres from northwest to southeast and is 2.0 metres high to the northwest side. The southwest half of the mound has been destroyed by a post-medieval farm lane which has cut through the monument. By its topographical situation and size Megaw considered it to be a probable Viking Burial Mound. Neolithic Ronaldsway type pottery has been found in the mound, but interpreted as having been "probably scooped up into the mound, and of no significance for classification of the mound."  Nevertheless, it is possible that the mound represents a prehistoric funerary monument.

A damaged burial mound at this location has been interpreted as an Early Medieval Viking burial site. Neolithic Ronaldsway type pottery has been found in the mound, but interpreted as having been "probably scooped up into the mound, and of no significance for classification of the mound." The flat topped, bramble covered barrow measures 17.0 m from northwest to southeast and is 2.0 m high to the northwest side. The southwest half of the mound has been destroyed by a post-medieval farm lane which has cut through the monument. By its topographical situation and size Megaw considered it to be a probable Viking Burial Mound.  Nevertheless, it is possible that the mound represents a prehistoric funerary monument.

Prehistoric flint scatter. A small quantity of worked prehistoric flint was recovered from Cronk Lammag by CH Cowley. No further details concerning the circumstances of the discovery were recorded and the grid reference relates to the summit of the hill for indicative purposes only. The antiquary Charles Harry Cowley was an avid collector of worked flint and coarse stone artefacts revealed by agricultural activity, mainly on farms located around Peel, and occasionally from further afield. He was active from 1900 until 1943. His entire collection of artefacts, together with a daybook cataloguing his discoveries, was later donated to Manx National Heritage.

It has been suggested that there were earthworks on the summit of Cronk Lheannag, in the field numbered 2128 on the 1869 1:2500 scale Ordnance Survey map, but these are not now apparent.

The findspot of a flint scatter of Mesolithic date.

The findspot of a flint scatter of Mesolithic date.

The findspot of a flint scatter of Mesolithic date.

A flint scatter of early prehistoric date.

A flint scatter of early prehistoric date.

A flint scatter of early prehistoric date.

Excavations were carried out on the site of a possible prehistoric barrow on the edge of Jurby aerodrome, formerly part of the estate of Ballamooar, by Group-Capt. F.R. Worthington (RAF Jurby) in 1953. The burial mound had been demolished more than a hundred years ago during agricultural improvements. The barrow was marked on a manuscript map of 1840 and clearly visible on aerial photographs but proved to be devoid of identifiable features.  One chisel-ended flint has been found at the site.

A record based on the field name "Upper Kil Field" which was interpreted by William Cubbon as a possible keeill placename. Dr Larch S. Garrad noted that in Manx speech a terminal "n" is sometimes dropped and therefore the name could be derived from "kiln".  No archaeological features have been recorded relating to either a keeill or kiln site however.

The Hill of Day Watch and Port of the Night Watch (Watch and Ward) for Jurby parish was at 'Knockmore' according to a document in the Castle Rushen Papers dated to 1627.  It has been suggested that the now lost burial mound of Cronk Mooar was the site of "Knockmore".  An alternative site at Cronk ny Arrey Lhaa, 0260.00, has been proposed. The majority of the Watch and Ward posts may well have been maintained on the same sites from the medieval period into the post medieval period.

Medieval burials. An annotated map showing antiquarian notes maintained at the Manx Museum records 'Graves found about 1875 by Corrin; ?Viking'. The observation was recorded by William Cubbon, director of the museum between 1932 and 1940. No further information is known and the annotation is marked at the grid reference provided.