Carrowcrom Wedge Tomb

Carrowcrom Wedge Tomb by Jim Dempsey

This perfectly preserved Carrowcrom or Cheathrú Chrom Wedge Tomb in Co. Mayo is marked on the OS Map as ‘Dermot & Grania’s Bed .’  This monument is located in the townland of Carrowcrom, South – West of the village of Bunnyconnonlan that is East -South -East of Ballina.  The Tomb is orientated North – East – South -West with the entrance at the South West.  The monument consists of a chamber that is 3.1 in length also 1.4 – 1.2 in width.  Two side – stones are lined on either side to form a near perfect wedge shape.  There are two over – lapping roof – stones two metres in length that slope towards the back.  The first two side – stones along with two erect orthostats of six metres in length form a frontal façade between have adjacent smaller slab stones that form dry – stone walling.  The entire monument is surrounded by a small ‘U ’- shaped Cairn of 6 metres in length by 6.5 metres in width also 1.5 metres in length at the West end; it decreases in height towards the East end.  Co ordinates are 54. 5 21.74 N, 9. 2 49.04 05 W. (Placenames Database of Ireland 2016 ) [i]

Carrowcrom Wedge Tomb is a National Monument is located 7 km ESE of Ballina.  It has been preserved over the years with additional field clearance stones adjoined to the sides.  It is ‘U ’ shaped in appearance with a façade either side of the gallery entrance.  The gallery is approximately 3.5 metres in length also 1.5 metres in width at the entrance.   It runs South – West – North – East also tapers in slightly towards the block of loose stones at its North -East end.  A wide low stone is set across the entrance, that may have been an original sill.  There are four orthostats on either side of the gallery that are visible from the interior.  They stand a metre high at the entrance then gradually decrease in height towards the rear of the gallery.  This gallery has both roof stones in place with the first stone overlapped as it rests on the rear.  These were fitted with dry stones or chock stones to the top of the gallery orthostats.  When viewed from the outside the gallery orthostats & rear roof stone are concealed by Cairn material. (June 2002 ) [ii]

This perfectly preserved Carrowcrum Wedge Tomb in Co. Mayo has coordinates of 54.05 23. N by 009 02 25 2.0 W.  It is in excellent condition.  The Wedge Tomb is 6 m in length by 5 m in width.  It stands 1.40 metres tall plus faces East.  A metal bar runs across the ceiling to support one of the capstones but is well concealed from the outside.  This site features an image of the Wedge Tomb by Antonia D’ Imperio 2003 – 2021 (14th May 2006 ) [iii]

This National Monument of Carrowcrom Wedge Tomb lies 7.2 km East- South – East from Ballina, Co. Mayo also 4. 8 km North – North – East of Attymass.  It retains its single capstone.  The taller front South West end of the Tomb has a facade with four large orthostats 3.7 m in length at the entrance.  Most of the out walling is visible especially at the East side.  The inside of the Gallery has dry – stone walling above & between the orthostats.  Latitude is 5 45 24 N, Longitude 9 2552 W.   It is 3 km from the Carrower Ogham Stone. (June 2002 )  (Dempsey regrets the fact that the National Monument sign is too close to the tomb ) [iv]

3 km North East of the Carrower Ogham Stone in Co. Mayo lies the perfectly intact Carrowcrom Wedge Stone.  It has four large orthostats with dry – walling in between at the front of the entrance. (Images feature by Jim Dempsey ) [v]

This Tomb as Gailge is Tuama Dinge na Ceathrún Croime, it is a National Monument under State care.  Carrowcrom Wedge Tom is located 7 km East – Southeast of Ballina in Co. Mayo.  It was erected circa 2500 – 2000 BC.  The wedge – shaped monument is 3.1 m in length by 1.3 m in width.  It has two orthostats on both sides.  Two roof stones cover the gallery.   The entire structure has a ‘U ’ shape cairn that faces Southwest towards the setting sun. [vi]

Carrowcrom Wedge Tomb is located nine km south of Ballina in Co. Mayo.  This well-preserved Monument is dated to circa 2500 – 2000 BC.  The Gallery is approximately a short facede that consists of 3.5 metres in length with an entrance opening of 1.5 metres in width.  It is flanked on both sides by four large orthostats with drywalling between them.  It is covered by a single two metres long capstone.  This Monument was associated with the legend of Diarmuid & Grainne: on older maps it was referenced as Dermot & Grainne’s Bed.  Coordinates are 9.04 78 84 by 54. 08 99 43. (2014 -2020 ) [vii]


Several images of Carrowcrom Wedge Tomb may be viewed at this link:

On may access this site for information on Heritage sites:

Publications that mention Carrowcrom Wedge Tomb include the following: Butler Alan 2011 ‘How to Read Prehistoric Monuments: A Unique Guide to Our Ancient Heritage,’  Duncan Baird Publications also Salisbury Roderick B. & Keeler Dustin 2009 ‘Space – Archaeology’s Final Frontier? An Interconnected Approach’  Cambridge Scholars Publishers (page 224 ) [viii]


[i] Carrowcrom Wedge Tomb ( [assessed 19th February 2021)

[ii] Carrowcrom ( [assessed 19th February 2021)

[iii] Carrowcrom ( [assessed 19th February 2021)

[iv] Carrowcrom ( [assessed 19th February 2021)

[v] Carrowcrom ( [assessed 19th February 2021)

[vi] Carrowcrom Wedge Tomb ( [assessed 19th February 2021)

[vii] Carrowcrom Wedge Tomb ( [assessed 19th February 2021)

[viii] Carrowcrom Wedge Tomb ( [assessed 19th February 2021)


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