List of Marilyns in Wales

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This is a list of the 158 Marilyns in Wales. It was originally published in The Relative Hills of Britain by Alan Dawson,[1] 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.

North Wales

Anglesey and the Llŷn Peninsula

Peak name Pronunciation H RH Grid ref. Parent
Yr Eifl urr ayvil 561 429 SH364447 Moel Hebog
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
Mynydd Anelog 191 151 Carn Fadryn

Northern Snowdonia

Peak name Pronunciation H RH Grid ref. Parent
Snowdon N/A 1085 1039 SH609543 Ben Nevis
Carnedd Llywelyn karr-nedh (hl)oh-elin 1064 750 SH683644 Snowdon
Glyder Fawr gləd-air vowr 1001 642 SH642579 Snowdon
Moel Siabod moyl shabodd 872 600 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
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 918 191 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
Moel Famau moyl vam-eye 555 276 SJ161626 Moel y Gamelin
Mwdwl-eithin moo-dool ay-thin 532 265 SH917540 Carnedd y Filiast
Great Orme N/A 207 203 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 1 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 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
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
Tarren y Gesail tarr-enn ə gess-ile 667 463 SH710059 Aran Fawddwy
Maesglase mice-gla'-se' 676 313 SH817150 2 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 1 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 752 526 SN789869 Pen y Fan
Carnedd Wen karr-nedh wen 523 228 SH924099 Aran Fawddwy
Esgair Ddu ess-gire dhee 464 222 SH873106 Carnedd Wen
Drosgol 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 1 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 660 374 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 498 206 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 1 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
Mynydd Mallaen or 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 1 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 3
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 886 668 SO012215 Snowdon
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
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 4 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 1 mənnidh din-ass 258 152 SS760915 Foel Fynyddau

Notes

^1 Mynydd Rhyd ddu, Craig y Castell, Disgwylfa Fawr, Cefn Cenarth, Carn Gafallt, Mynydd Dinas and Mynydd y Cwm 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]

^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]

^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.[2]

References

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