List of Marilyns in Wales

This is a list of the 157 Marilyns in Wales. It was originally published in The Relative Hills of Britain by Alan Dawson, and is one of several popular lists of hills that include Wales.

In the parent column, the prominence parent is used, as opposed to any other definition of 'parent'. The prominence parent of peak A can be found by dividing the island or region in question into territories, by tracing the runoff from the key col of every peak that is higher than peak A. The parent is the peak whose territory peak A resides in.

Note; In these tables H stands for height and RH stands for relative height. All measurements are in metres.

Pronunciation

To aid understanding of how the Welsh hills' names should be spoken, the table gives a basic but workable guide to their pronunciation by English speakers (but not for hills where the name is already in English or the spelling has been Anglicised). The transcriptions are generally self-explanatory, but a few clarifications are inevitable. See also Pronunciation of Welsh.

• dh represents a soft th, as in then.
• (hl) represents the 'Welsh ll', like an h and an l said together.
• (hr) is similar but with an r.
• ə represents the schwa, as in butter or above. Watch out for this symbol and pronounce it with an ə sound.
• oo represents the short oo in foot. Watch out for this one.
• kh represents the hard ch sound as in Scottish loch.
• ow rhymes with English cow, and likewise owr rhymes with English hour.
• When vowels are stated followed by an apostrophe at the end of words, this is an indication that they should be kept short, as in the French 'ca va', and similarly with e and i.
• Finally, 'iw' at the end of a word should be read literally as a short i followed by a w sound.

North Wales

Anglesey and the Llŷn Peninsula

Peak name	Pronunciation	H	RH	Grid ref.	Parent
Yr Eifl	urr ayvil	564	433	SH364447	Moel Hebog	Carn Fadryn
Gyrn Ddu	geerrn dhee	522	385	SH401467	Yr Eifl
Carn Fadryn	karrn vad-rinn	371	343	SH278351	Yr Eifl
Mynydd Rhiw	mənnidh (hr)iw	304	240	SH228293	Carn Fadryn
Moel-y-gest	moyl ə gest	263	236	SH549388	Moel Hebog
Holyhead Mountain	N/A	220	220	SH218829	none — HP Holy Island
Mynydd Bodafon	mənnidh bod-AV-on	178	178	SH472854	none — HP Anglesey
Garn Boduan	garrn bod-ee-an	279	172	SH312393	Yr Eifl
Mynydd Enlli	mənnidh en-(hl)i'	167	167	SH122218	none — HP Bardsey
Carneddol	karr-nedh-ol	235	157	SH301331	Carn Fadryn

Northern Snowdonia

Peak name	Pronunciation	H	RH	Grid ref.	Parent
Snowdon	N/A	1085	1038	SH609543	Ben Nevis	Snowdon
Carnedd Llywelyn	karr-nedh (hl)oh-elin	1064	750	SH683644	Snowdon
Glyder Fawr	gləd-air vowr	1001	643	SH642579	Snowdon
Moel Siabod	moyl shabodd	872	595	SH705546	Glyder Fawr
Moel Hebog	moyl hebbog	783	585	SH565469	Snowdon
Mynydd Mawr	mənnidh mowr	698	462	SH539546	Moel Hebog
Craig Cwm Silyn	krye-g koom sillin	734	398	SH525502	Moel Hebog
Moelwyn Mawr	moyl-winn mowr	770	385	SH658448	Arenig Fawr
Creigiau Gleision	kraig-ya’ glai-shonn	678	262	SH729615	Carnedd Llewelyn
Moel Eilio	moyl ail-yo’	726	259	SH555577	Snowdon
Allt-fawr	ah(hl)t vowr	698	243	SH681474	Moelwyn Mawr
Y Garn	ə garrn	947	236	SH630595	Glyder Fawr	Y Lliwedd
Yr Aran	urr aran	747	235	SH604515	Snowdon
Elidir Fawr	ellideer vowr	924	212	SH612613	Y Garn
Moel y Dyniewyd	moyl ə dənn-ye’-widd	382	208	SH612477	Allt-fawr
Trum y Ddysgl	trim ə dhəss-gil	709	204	SH544516	Craig Cwm Silyn
Moel-ddu	moyl dhee	553	198	SH579442	Moel Hebog
Tryfan	trə-van	918	188	SH664593	Glyder Fawr
Tal y Fan	tal ə van	610	186	SH729726	Carnedd Llewelyn
Pen Llithrig y Wrach	pen (hl)idhrig ə oor-ah-kh	799	181	SH716623	Carnedd Llewelyn
Moel Cynghorion	moyl kəng-haur-yonn	674	176	SH586563	Snowdon
Y Lliwedd	ə (hl)i-wedh	898	154	SH622533	Snowdon

Llandudno to Wrexham

Peak name	Pronunciation	H	RH	Grid ref.	Parent
Moel y Gamelin	moyl ə ga-MEL-in	577	382	SJ176465	Arenig Fawr	Great Orme
Moel Famau	moyl vam-eye	555	272	SJ161626	Moel y Gamelin
Mwdwl-eithin	moo-dool ay-thin	532	265	SH917540	Carnedd y Filiast
Great Orme	N/A	207	201	SH767833	Mwdwl-eithin
Hope Mountain	N/A	330	189	SJ294568	Moel y Gamelin
Moel Gyw	moyl giw	467	181	SJ171575	Moel Famau
Mynydd Rhyd ddu	mənnidh (hr)eed dhee	389	165	SJ054477	Mwdwl-eithin
Cyrn-y-Brain	keern ə brine	565	162	SJ208488	Moel y Gamelin
Penycloddiau	pen-ə-klodh-ya’	440	156	SJ127678	Moel Famau
Foel Fenlli	voyl ven-(hl)i’	511	153	SJ164600	Moel Famau
Mynydd y Cwm	mənnidh ə koom	305	150	SJ073767	Moel Famau

Barmouth to Betws-y-Coed and Bala

Peak	Pronunciation	H	RH	Grid ref.	Parent
Y Llethr	ə (hl)eth-air	756	561	SH661258	Moel Siabod	Arenig Fawr
Arenig Fawr	arenig vowr	854	479	SH827369	Moel Siabod
Rhinog Fawr	(hr)innog vowr	720	363	SH656290	Y Llethr
Carnedd y Filiast	karr-nedh ə vil-yast	669	315	SH871445	Arenig Fawr
Y Garn	ə garrn	629	315	SH702230	Y Llethr
Rhobell Fawr	(hr)obb-e(hl) vowr	734	309	SH786256	Arenig Fawr
Arenig Fach	arenig vah-kh	689	294	SH820415	Arenig Fawr
Foel Goch	voyl gaukh	611	274	SH953422	Carnedd y Filiast
Manod Mawr	man-odd mowr	661	266	SH723446	Arenig Fach
Foel Offrwm	voyl off-room	405	236	SH749209	Rhobell Fawr
Moel Llyfnant	moyl (hl)əv-nant	751	206	SH808351	Arenig Fawr
Moel Ysgyfarnogod	moyl əss-gəv-arr-noggod	623	180	SH658345	Rhinog Fawr
Mynydd Nodol	mənnidh nodd-ol	539	168	SH865393	Arenig Fawr
Moelfre	moyl-vre'	589	162	SH626246	Y Llethr

Bala to Welshpool

Peak	Pronunciation	H	RH	Grid ref.	Parent
Aran Fawddwy	aran fowdh-ooey	905	672	SH862223	Snowdon	Aran Fawddwy
Cadair Berwyn	kadd-ire bair-winn	830	344	SJ071323	Aran Fawddwy
Gyrn Moelfre	geern moyl-vre'	523	237	SJ184293	Cadair Berwyn
Rhialgwm	(hr)ee-al-goom	540	225	SJ055211	Aran Fawddwy
Glasgwm	glas-goom (long s)	780	213	SH836194	Aran Fawddwy
Cyrniau Nod	kurrn-ya' nod	667	179	SH988279	Aran Fawddwy
Allt y Main	a(hl)t ə mine	356	171	SJ162151	Rhialgwm
Esgeiriau Gwynion	ess-gair-ya' gwin-yonn	671	166	SH889236	Aran Fawddwy
Y Golfa	ə gol-va'	341	165	SJ182070	Carnedd Wen
Mynydd-y-briw	mənnidh ə briw	341	165	SJ173260	Cadair Berwyn

Dolgellau to Machynlleth

Peak	Pronunciation	H	RH	Grid ref.	Parent
Cadair Idris	kadd-ire idd-riss	893	608	SH711130	Aran Fawddwy	Cadair Idris
Tarren y Gesail	tarr-enn ə gess-ile	667	463	SH710059	Aran Fawddwy
Maesglase	mice-gla'-se'	676	313	SH817150	Aran Fawddwy
Ffridd Cocyn	fridh cock-in	313	247	SH624042	Tarren y Gesail
Foel Cae'rberllan	voyl kire-bair-(hl)an	380	211	SH676082	Cadair Idris
Gamallt	gam-a(hl)t	288	206	SH665067	Ffridd Cocyn
Tarrenhendre	tarr-enn-hen-dre'	634	199	SH682041	Tarren y Gesail
Mynydd Cwmcelli	mənnidh koom-ke(hl)i'	469	157	SH804099	Maesglase
Craig y Castell	krye-g ə kast-e(hl)	321	153	SH697161	Cadair Idris

Mid Wales and Pembrokeshire

Aberystwyth to Welshpool

Peak	Pronunciation	H	RH	Grid ref.	Parent
Plynlimon	plən-limon	752	524	SN789869	Pen y Fan	Plynlimon
Carnedd Wen	karr-nedh wen	523	228	SH924099	Aran Fawddwy
Esgair Ddu	ess-gire dhee	464	222	SH873106	Carnedd Wen
Drosgl	dross-gl	550	195	SN759878	Plynlimon
Stingwern Hill	N/A	358	180	SJ132014	Carnedd Wen
Bryn y Fan	brin ə van	482	177	SN931885	Plynlimon
Upper Park	N/A	352	174	SJ188052	Carnedd Wen
Bryn Amlwg	brin am-loog	488	170	SN921973	Plynlimon
Banc Llechwedd-mawr	bank (hl)ekh-wedh mowr	560	161	SN775898	Plynlimon
Disgwylfa Fawr	diss-gwəl-va' vowr	507	152	SN737847	Banc Llechwedd-mawr
Garreg-hir	garreg heer	485	151	SN998977	Carnedd Wen

Welshpool to Hay-on-Wye

Peak	Pronunciation	H	RH	Grid ref.	Parent
Great Rhos	great (hr)auss	660	373	SO182639	Plynlimon
Long Mountain	N/A	408	305	SJ264058	Stiperstones
Pegwn Mawr	pegg-ən mowr	586	300	SO023812	Plynlimon
Moel y Golfa	moyl ə gol-va'	403	261	SJ290125	Long Mountain
Gwastedyn Hill	N/A	477	242	SN986661	Pegwn Mawr
Aberedw Hill	abb-air-eddoo hill	451	227	SO084507	Great Rhos
Rhiw Gwraidd	(hr)iw gə-rye-dh	442	214	SO009633	Gwastedyn Hill
Garreg Lwyd	garreg loo-id	499	206	SN942733	Pegwn Mawr
Carneddau	karr-nedh-a'	445	206	SO069551	Great Rhos
Corndon Hill	N/A	513	201	SO306969	Stiperstones
Beacon Hill	N/A	547	174	SO176767	Pegwn Mawr
Caeliber Isaf	kye-li-bair iss-av	355	172	SO211933	Beacon Hill
Gwaunceste Hill	gwine-kess-te' hill	542	161	SO158555	Great Rhos
The Begwns	the begg-oons	415	157	SO155444	Gwaunceste Hill
Cefn Cenarth	kevvenn ken-arrth	460	155	SN969762	Garreg Lwyd

South-West Wales

Peak	Pronunciation	H	RH	Grid ref.	Parent
Foel Cwmcerwyn	voyl koom-kair-win	536	344	SN094311	Plynlimon
Drygarn Fawr	drəg-arrn vowr	645	258	SN862583	Plynlimon
Mynydd Carningli	mənnidh karrn-ing-li'	346	232	SN062372	Foel Cwmcerwyn
Mynydd Cynros	mənnidh kən-ross	329	221	SN620326	Drygarn Fawr
Crugiau Merched	krig-ya' mair-khedd	462	205	SN722455	Drygarn Fawr
Pen y Garn	pen ə garrn	610	193	SN798770	Plynlimon
Pen-crug-melyn	pen krig mellin	326	184	SN502285	Drygarn Fawr
Frenni Fawr	vrenni' vowr	395	177	SN203349	Foel Cwmcerwyn
Llan Ddu Fawr	(hl)an dhee vowr	594	168	SN790704	Drygarn Fawr
Rhos Ymryson	(hr)auss əmm-rəss-on	327	164	SN459500	Waun Claerddu
Pen y Garn-goch	pen ə garrn gaukh	487	162	SN884502	Drygarn Fawr
Carn Gafallt	karrn gav-a(hl)t	466	157	SN940646	Drygarn Fawr
Hafod Ithel	havod ith-ell	361	155	SN610677	Waun Claerddu
Brandy Hill or  Middleton Hill	N/A	205	151	SN213133 or  SN146118	Foel Cwmcerwyn

South Wales

Llandovery to Monmouth

Peak	Pronunciation	H	RH	Grid ref.	Parent
Pen y Fan	pen ə van	886	671	SO012215	Snowdon	Pen y Fan
Waun Fach	wine vah-kh	811	622	SO215300	Pen y Fan
Fan Brycheiniog	van brəkh-ain-yog	802	423	SN825217	Pen y Fan
Sugar Loaf	N/A	596	413	SO272187	Waun Fach
Ysgyryd Fawr	əss-gə-rid vowr	486	344	SO331182	Sugar Loaf
Fan Fawr	van vowr	734	295	SN969193	Pen y Fan
Mynydd Troed	mənnidh troyd	609	286	SO165292	Waun Fach
Fan Gyhirych	van gə-heer-ikh	725	280	SN880190	Fan Fawr
Graig Syfyrddin	gr-eye-g səv-urr-dhin	423	235	SO403210	Ysgyryd Fawr
Allt yr Esgair	ah(hl)t urr ess-gire	393	205	SO126243	Mynydd Troed
Mynydd Epynt	mənnidh eppint	478	199	SN961464	Drygarn Fawr	Sugar Loaf
Cefn yr Ystrad	kev-enn urr əss-trad	617	178	SO086137	Pen y Fan
Fan Nedd	van nedh	663	174	SN913184	Fan Gyhirych
Waun Rydd	wine reedh	769	170	SO062206	Pen y Fan
Myarth	my-arth	292	164	SO170208	Allt yr Esgair
Mynydd Llangorse	mənnidh (hl)ang-orse	515	161	SO159266	Mynydd Troed
Tor y Foel	tor ə voyl	551	157	SO114194	Cefn yr Ystrad
Bryn Arw	brin aroo	384	156	SO301206	Sugar Loaf
Black Mountain	N/A	703	154	SO255350	Waun Fach

Carmarthen to the Vale of Neath

Peak	Pronunciation	H	RH	Grid ref.	Parent
Mynydd Marchywel	mənnidh markh-oh-ell	418	263	SN768037	Fan Gyhirych
Hirfynydd	heer-fən-idh	481	246	SN839076	Fan Gyhirych
Mynydd Sylen	mənnidh səll-enn	284	209	SN515080	Fan Brycheiniog
Mynydd y Betws	mənnidh ə bett-ooss	373	205	SN665095	Fan Brycheiniog
Trichrug	trikh-rug	415	191	SN698229	Fan Brycheiniog
Mynydd Allt-y-grug	mənnidh ah(hl)t ə grig	338	190	SN750079	Fan Brycheiniog
Mynydd Uchaf	mənnidh ikh-av	357	182	SN715103	Fan Brycheiniog
Mynydd Drummau	mənnidh drim-a'	272	171	SN725001	Mynydd Marchywel
Mynydd Llangyndeyrn	mənnidh (hl)an-gən-deern	262	170	SN482132	Mynydd Sylen

Neath to Chepstow

Peak	Pronunciation	H	RH	Grid ref.	Parent
Craig y Llyn	kr-eye-g ə (hl)in	600	392	SN906031	Pen y Fan
Mynydd Twyn-glas	mənnidh too-in glas	472	253	ST259978	Pen y Fan
Wentwood	N/A	309	240	ST411943	Ysgyryd Fawr
Cefn Eglwysilan	kev-en egg-LOO-eess-ilan	382	235	ST097905	Pen y Fan
Coity Mountain	N/A	578	231	SO231079	Pen y Fan
Foel Fynyddau	voyl vənn-ədh-a'	370	222	SS782936	Craig y Llyn
Mynydd y Lan	mənnidh ə lan	381	215	ST208923	Pen y Fan
Garth Hill	N/A	307	211	ST103835	Craig y Llyn
Mynydd Machen	mənnidh makh-enn	362	185	ST223900	Pen y Fan
Mynydd y Glyn	mənnidh ə glin	377	182	ST031896	Craig y Llyn
Mynydd Carn-y-cefn	mənnidh karrn ə kev-enn	550	176	SO187084	Cefn yr Ystrad
Craig yr Allt	kr-eye-g urr ah(hl)t	273	154	ST133850	Cefn Eglwysilan
Mynydd Dinas	mənnidh din-ass	258	152	SS760915	Foel Fynyddau

Notes

^1 Mynydd Rhyd ddu, Craig y Castell, Disgwylfa Fawr, Cefn Cenarth, Carn Gafallt and Mynydd Dinas have all been discovered to be Marilyns since the publication of The Relative Hills of Britain and are therefore not listed in the book.

^2 Traditionally, the top of Maen Du (674 m at SH823152) was regarded as Maesglase's summit. However, more recent surveys suggest that the top of Craig Rhiw-erch (c 676 m at SH817150, some 600 m to the west) is higher.

^3 Brandy Hill and Middleton Hill both have a height of 205 m and are separated by a c 40 m drop. They are collectively separated from Foel Cwmcerwyn (their parent) by a 151 m drop making one of them a Marilyn. However, without more accurate heights, it is impossible to say which is the Marilyn, making them an example of a twin peak.

^4 The summit of the Black Mountain lies very close to, if not precisely on, the English–Welsh border. It is sometimes therefore included on the English list too; however recent convention is to regard it as solely in Wales.