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© 2013 - 2016 Myrddyn Phillips and Aled Williams. Non-commercial copying is permitted provided attribution is preserved. Re-use of the presented data in this or another format requires the permission of the authors.
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Contains OS Data © Crown copyright and database rights 2016, licensed under the OGL (see at http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ ).
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© Crown: CHERISH PROJECT 2019. Produced with EU funds through the Ireland Wales Co-operation Programme 2014-2020. All material made freely available through the Open Government Licence.
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Y Pellennig - Remotest Hills of Wales - All Wales
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RankNameRemoteness (km)Summit Grid Reference1:50,000 Map1:25,000 mapSummit Height (m)Drop (m)
Section
Cardinal HillGrid Reference (Nearest Paved Public Road)Bwlch Grid ReferenceBwlch Height (m)Notes
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1West Tump16.33SM 596 09315736171731CGwales
SM 76034 08976
SM 596 093N/AThe summit is situated on an island or tidal island.
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2Gwales16.17SM 598 09315736424231CGwales
SM 76034 08976
N/AN/AThe summit is situated on an island or tidal island. Recorded by the Ordnance Survey as Grassholm Island and as Wallis on the ‘Penbrochiae Comitatus, olim Demetiae Regionis Descriptio’ map of 1602. Second summit of same map height at SM 598 094 on the Ordnance Survey enlarged Geograph map.
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3Emsger7.725SM 651 2261573533.733.731CBishops and ClerksSM 72411 25237N/AN/AThe summit is situated on an island or tidal island. Name composition in accordance with standard modern Welsh and upland place-name principles. Also recorded by the Ordnance Survey as South Bishop and as Carreg Emskar ('Dictionary of the Place-Names of Wales' by H.W.Owen and R.Morgan, 2007). 33.7m summit height (and therefore also drop) from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
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4Daufraich6.45SM 661 2361573521.721.731CBishops and ClerksSM 72411 25237N/AN/AThe summit is situated on an island or tidal island. 21.7m summit height (and therefore also drop) from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
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5Pt. 22m, North Bishop6.275SM 666 27715735222231CBishops and ClerksSM 72411 25237N/AN/AThe summit is situated on an island or tidal island.
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6Pt. 21m, North Bishop6.2SM 667 27815735212131CBishops and ClerksSM 72411 25237N/AN/AThe summit is situated on an island or tidal island.
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7North Bishop6SM 670 28015735444431CBishops and ClerksSM 72411 25237N/AN/AThe summit is situated on an island or tidal island. Highest point in the chain of islets known as North Bishop.
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8Pt. 23m, Carreg Rhoson5.95SM 664 25315735232331CBishops and ClerksSM 72411 25237N/AN/AThe summit is situated on an island or tidal island.
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9Pt. 24m, North Bishop5.9SM 672 28115735242431CBishops and ClerksSM 72411 25237N/AN/AThe summit is situated on an island or tidal island.
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10Pt. c 20m, Carreg Rhoson5.85SM 665 25415735c20c2031CBishops and ClerksSM 72411 25237N/AN/AThe summit is situated on an island or tidal island.
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11Pt. 23m, Carreg Rhoson5.775SM 666 25415735232331CBishops and ClerksSM 72411 25237N/AN/AThe summit is situated on an island or tidal island.
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12Pen Diban5.71SH 112 205123253201530BYnys Enlli
SH 14901 24954
SH 112 2095The summit is situated on an island or tidal island. 20.0m summit height and 5.0m bwlch height (15m drop) from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
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13Carreg Rhoson5.67SM 667 25415735444431CBishops and ClerksSM 72411 25237N/AN/AThe summit is situated on an island or tidal island. Highest point in the chain of islets known as Carreg Rhoson.
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14Pt. 22m, Carreg Rhoson5.25SM 671 25615735222231CBishops and ClerksSM 72411 25237N/AN/AThe summit is situated on an island or tidal island.
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15The Head5.21SM 731 0461573655.055.031CSkokholm
SM 76034 08976
N/AN/AThe summit is situated on an island or tidal island. This summit is the highest point of Skokholm. 55.0m summit height and its position extracted from the surface analysis programme developed by Joe Nuttall.
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16Carreg Rhoson5.175SM 672 25615735282831CBishops and ClerksSM 72411 25237N/AN/AThe summit is situated on an island or tidal island. 28m summit height taken from the DataMapWales and its position extracted from the surface analysis programme developed by Joe Nuttall.
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17Pt. 24m, Carreg Rhoson5.05SM 673 25715735242431CBishops and ClerksSM 72411 25237N/AN/AThe summit is situated on an island or tidal island.
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18Ynys Echni4.975ST 221 646171, 182151323232CYnys EchniST 18683 68185N/AN/AThe summit is situated on an island or tidal island. Recorded by the Ordnance Survey as Flat Holm.
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19Tyle Garw4.875SN 784 17816012467.3c4132AFan BrycheiniogSN 78492 12918SN 787 173c426467.3m summit height from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips. Tyle Garw holds the distinction of being the remotest hill of mainland Wales.
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20Ynysoedd y Moelrhoniaid4.875SH 267 94711426221.721.730AYnysoedd y MoelrhoniaidSH 30321 91435N/AN/AThe summit is situated on an island or tidal island. Also recorded by the Ordnance Survey as The Skerries, with the singular form of Ynys y Moelrhoniaid also appearing in various sources. 21.6m summit height (and therefore also drop) from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
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21Foel Uchaf4.85SN 806 622147187, 2004763131CDrygarn FawrSN 77033 65470SN 805 624445Foel Uchaf is the prioritised locally known name for this hill. Foel Uchaf and Foel Isaf are also locally known by the collective names of Moelydd and Foel Moel Prysgau. Drop value from 445m bwlch height on the Ordnance Survey enlarged Geograph map.
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22Ynys Arw4.85SH 266 94511426215.215.230AYnysoedd y MoelrhoniaidSH 30321 91435N/AN/AThe summit is situated on an island or tidal island. 15.2m summit height (and therefore also drop) from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
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23Pt. 17m4.8SM 712 09615736171731CSkomer
SM 76034 08976
N/AN/AThe summit is situated on an island or tidal island. Summit height of 17m taken from the Ordnance Survey enlarged Geograph map. Summit height of 7m on current Ordnance Survey 1:25,000 Explorer maps.
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24Ynys Berchen4.775SH 271 950114262181830AYnysoedd y MoelrhoniaidSH 30855 92060SH 270 950N/AThe summit is situated on an island or tidal island. Also recorded by the Ordnance Survey as Berchan [sic]. Summit height from the Ordnance Survey enlarged Geograph map.
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25Cerrig Coegion4.75SN 790 17616012473.4c5632AFan BrycheiniogSN 78492 12918SN 795 187c417Cerrig Coegion is the locally known name for this hill. Name taken from a non-Ordnance Survey source. The name is also recorded in 'Bugail Y Mynydd Du' by Rhys Davies. 473.3m summit height from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips. Triangulation pillar with 471.830m flush bracket height situated southward of summit at grid reference SN 790 174.
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26Pig Stone4.75SM 713 09215736272731CSkomer
SM 76034 08976
N/AN/AThe summit is situated on an island or tidal island.
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27Esgair y Llyn4.535SN 841 701135, 136, 147200528.615.631CCarn yr HyrddodSN 88586 69399SN 838 700513.0528.6m summit height and 513.0m bwlch height (15.6m drop) from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips and Aled Williams, with both positions based on LIDAR analysis conducted by Aled Williams.
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28Carnedd Uchaf4.52SH 686 66811517925.033.030BCarnedd LlywelynSH 73190 66331SH 691 673892.0Carnedd Gwenllian was accepted by the Ordnance Survey as an official name for this summit on the 26th September 2009. This name originates as an invented name coined by Cymdeithas y Dywysoges Gwenllian and as such, has received a mixed reception among the local farming community. Thomas Pennant recorded the name of this hill as Carnedd y Lladron in 1781, which is substantiated by an 1848 Tithe map. However, Carnedd Uchaf is currently the name in local use. 925.0m summit height from a Leica RX1250 survey conducted by Alan Dawson and 892.0m bwlch height (33.0m drop) from LIDAR analysis conducted by Aled Williams.
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29Cnapyn Drawsffos4.51SN 834 706135, 136, 147200* 548.04631CCarn yr HyrddodSN 83196 75149SN 831 713502548.0m summit height from LIDAR analysis conducted by Aled Williams. Drop value ascertained from a 21.6m basic levelling survey conducted from the critical bwlch for this hill at SN 831 713 to the 524m summit of Trum y Gŵr at SN 830 718.
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30Foel Grach4.35SH 688 65911517975.441.830BCarnedd LlywelynSH 73190 66331SH 688 652933.7975.4m summit height from a Leica RX1250 survey conducted by Alan Dawson and 933.7m bwlch height (41.8m drop) from LIDAR analysis conducted by Aled Williams. Emergency mountain refuge situated just below the summit.
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31Foel Ganol4.3SN 809 916135, 136214, 215548c2631APumlumon Fawr
SN 80076 95840
SN 808 918c522Foel Ganol is the locally known name for this hill. The Ordnance Survey have incorrectly applied the name Foel Isaf to this hill.
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32Foel Isaf4.26SN 802 912135, 136214, 215565c3431APumlumon FawrSN 77500 87966SN 792 910c531Foel Isaf is the locally known name for this hill. The Ordnance Survey have incorrectly applied the name Foel Uchaf to this hill, having previously recorded Moel Palurau [sic] as the name. Recorded as Moel y Delyn on a 1744 map entitled 'A Plan of the Mannor of Perveth'.
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33Esgair Garthen4.26SN 825 642147187, 200508.122.731CDrygarn FawrSN 86717 63600SN 823 639485.35508.1m summit height and 485.35m bwlch height (22.7m drop) from a Trimble GeoXH 6000 summit survey and LIDAR bwlch analysis conducted by Aled Williams and Myrddyn Phillips.
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34Llethr Gwaered4.225SN 801 626147187, 2004902631CDrygarn FawrSN 77033 65470SN 794 630464Llethr Gwaered is the locally known name for this hill.
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35Blaen Rhestr4.2SN 843 693135, 136, 147200547c3931CCarn yr HyrddodSN 88582 69378SN 837 689c508Roofed and locked building situated south-westward of the summit.
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36Garland Stone4.17SM 721 10415736323231CSkomer
SM 76034 08976
N/AN/AThe summit is situated on an island or tidal island. Also recorded by the Ordnance Survey as Garlands Stones and as Yardeland Stone on the 'Penbrochiae Comitatus olim Demetiae Regionis Descriptio' map of 1602.
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37Long Point4.14SM 744 05115736151531CSkokholm
SM 76034 08976
SM 744 052N/AThe summit is situated on an island or tidal island. Summit height from the Ordnance Survey enlarged Geograph map.
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38Foel Isaf4.075SN 803 614147187, 200473c3931CDrygarn FawrSN 79297 57549SN 803 618c434Foel Isaf is the prioritised locally known name for this hill. Foel Uchaf and Foel Isaf are also locally known by the collective names of Moelydd and Foel Moel Prysgau.
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39Mynydd Enlli4.025SH 123 219123253167.9167.930AMynydd Enlli
SH 14901 24954
N/AN/AThe summit is situated on an island or tidal island. This summit is the highest point of Ynys Enlli. 167.9m summit height from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
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40Pt. 78m, Skomer4SM 721 0991573678c1631CSkomer
SM 76034 08976
SM 720 096c62The summit is situated on an island or tidal island. Situated on part of Skomer recorded as North Plateau by the Wildlife Trust of South and West Wales. The name (or a description) Sheer Face is applied to this hill on the Ordnance Survey 1:2,500 and enlarged Geograph map. Included in the Pellennig list due to map contour interpolation.
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41Foel Fras3.975SH 696 68111517944.162.830BCarnedd LlywelynSH 73190 66331SH 687 665881.3944.1m summit height and 881.3m bwlch height (62.8m drop) from a Leica RX1250 survey conducted by Alan Dawson. Triangulation pillar with 943.051m flush bracket height situated on the summit area at SH 69652 68173.
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42Chapel Point3.96SS 142 95915836c57c1531CYnys BŷrSS 11702 98964SS 135 964c42The summit is situated on an island or tidal island. Included in the Pellennig list due to map contour interpolation. Triangulation pillar at SS 142 959 with 55.882m flush bracket height situated on the summit area. However, inspection of photographs of the area around the trig indicates that the summit of this hill is approximately 1.5m higher than the base of the trig.
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43Carnedd Llywelyn3.95SH 683 643115171062.1748.330BCarnedd Llywelyn
SH 67752 60472
SH 675 604313.7Name composition in accordance with standard modern Welsh and upland place-name principles. 1062.1m summit height from LIDAR analysis conducted by Aled Williams and 313.7m bwlch height from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips with the position based on LIDAR analysis conducted by Aled Williams.
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44Llethr Hir3.95SN 833 671135, 136, 147187, 200c486c3331CCarn yr HyrddodSN 79418 68033SN 835 674c453
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45Pumlumon Arwystli3.925SN 814 8771352147416431APumlumon FawrSN 80387 83956SN 808 873677Also recorded by the Ordnance Survey as Pen Pumlumon Arwystli and by the colloquial alternative Plynlimon Arwystli. Second summit of same map height positioned at SN 815 877 on the Ordnance Survey Vector Map Local hosted on the Geograph website and which is entitled the Interactive Coverage Map. Drop value from 677m bwlch spot height on the Ordnance Survey Vector Map Local hosted on the Geograph website and which is entitled the Interactive Coverage Map.
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46Ynys Bery3.925SM 701 21915735727231CYnys DewiSM 72411 25237N/AN/AThe summit is situated on an island or tidal island. Also recorded by the Ordnance Survey as Margery Island. 72.0m summit height from LIDAR analysis conducted by Aled Williams, with a more remote (4.100 km) second summit of same 71m map height positioned at SM 70056 21859 alanysed via LIDAR as being 71.9m high.
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47Drygarn Fawr3.9SN 862 584147187, 200645c25831CDrygarn FawrSN 83624 55531SN 857 754c387Also recorded by the Ordnance Survey as Trigarn. Summit height taken from the 2,115ft (644.7m) levelled height on the Ordnance Survey 1:10,560 map, which matches the rounded up 645m height on contemporary Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps. Triangulation pillar with 641.604m flush bracket height situated south-westward of summit at SN 86226 58375.
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48The Stack3.87SM 745 05415736202031CSkokholm
SM 76034 08976
N/AN/AThe summit is situated on an island or tidal island. Also recorded by the Ordnance Survey as Skokham Stack.
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49Ochr Llygnant3.838SN 796 9171352155511531APumlumon FawrSN 78865 95482SN 799 917536Analysis of a 1788 Gogerddan Estate map suggests that the name is probably a shortening of Ochr Helygnant. Summit height taken from Ordnance Survey data hosted on the Magic Maps and the WalkLakes websites. Drop value ascertained from, and included in Y Pellennig list due to, a 15.1m basic levelling survey conducted by Myrddyn Phillips.
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50Carn Fadog3.825SN 767 171160125122632AFan BrycheiniogSN 73201 18538SN 767 176486Drop value ascertained from a 26.4m basic levelling survey conducted by Myrddyn Phillips.
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51Bera Bach3.7SH 672 67711517806.517.730BCarnedd LlywelynSH 63812 66305SH 675 676788.8806.5m summit height and 788.8m bwlch height (17.7m drop) from a Leica RX1250 survey conducted by Alan Dawson.
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52Yr Elen3.625SH 673 65111517963.355.230BCarnedd LlywelynSH 63759 66029SH 676 647908.1Also locally known by the colloquial alternative Yr Elan and recorded as Moel yr Elain by Thomas Pennant in 1781. 963.3m summit height and 908.1m bwlch height (55.2m drop) from LIDAR analysis conducted by Aled Williams.
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53Drum yr Eira3.625SN 851 589147187, 2006022031CDrygarn Fawr
SN 82984 56049
SN 856 584582602m summit height from the Ordnance Survey non-contour Vector Map Local hosted on the Geograph website and which is entitled the Interactrive Coverage Map and from Ordnance Survey data hosted on the WalkLakes website. Drop value taken from the 582m bwlch spot height on the Ordnance Survey Vector Map Local hosted on the Geograph website and which is entitled the Interactrive Coverage Map.
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54Llechwedd Crin3.6SN 816 922135, 136214, 215539c2031APumlumon FawrSN 83757 95176SN 809 922c519
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55Ynys Eilun3.58SM 707 21915735262631CYnys DewiSM 72411 25237N/AN/AThe summit is situated on an island or tidal island. Also recorded by the Ordnance Survey as Minedeon. Height of 26m taken from the Ordnance Survey 1:50,000 Landranger map (25m on the Ordnance Survey 1:25,000 Explorer and enlarged Geograph maps).
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56Cefn Perfedd3.575SJ 099 374125255600.932.330ECraig BerwynSJ 12976 35524SJ 097 371568.6Cefn Perfedd is the locally known name for this hill. The name also appears on an historical Ordnance Survey map. 600.9m summit height and 568.6m bwlch height (32.3m drop) from Leica RX1250 survey conducted by Alan Dawson.
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57Aran Fawddwy3.56SH 862 223124, 12523905.6672.930EAran FawddwySH 88374 25257 SH 85256 18958SH 850 267232.7905.6m summit height from a Leica RX1250 survey conducted by Alan Dawson. Triangulation pillar with 906.780m flush bracket height situated on the summit area. 232.7m bwlch height from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips, with the position based on LIDAR analysis initially conducted by Aled Williams and subsequently by Myrddyn Phillips.
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58Crug Gynon3.55SN 801 638147187, 200525c6631CDrygarn FawrSN 77033 65470SN 808 635c459An alternative local name is Crug Garreg Lwyd.
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59Midland3.53SM 704 22215735303031CYnys DewiSM 72411 25237N/AN/AThe summit is situated on an island or tidal island. Height of 98ft (30m) taken from the Ordnance Survey 1:25,000 Historical map.
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60Pt. 70m, Skomer3.51SM 725 0861573670c1831CSkomer
SM 76034 08976
SM 727 088c52The summit is situated on an island or tidal island. Situated on part of Skomer recorded as South Plateau by the Wildlife Trust of South and West Wales. Summit height from the Ordnance Survey enlarged Geograph map.
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61Cadair Fronwen3.5SJ 077 346125255783.473.330ECraig BerwynSJ 09970 31954SJ 076 340710.1Name composition in accordance with standard modern Welsh and upland place-name principles. 783.4m summit height and 710.1m bwlch height (73.3m drop) from Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
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62Cefn Dylif3.5SJ 089 369125255618.3* 37.030ECraig BerwynSJ 06000 38792SJ 090 365581.3Name taken from a historical Ordnance Survey map. An alternative local name is Mynydd Plas y Faerdref. 618.3m summit height and 581.3m bwlch height (37.0m drop) from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips and Aled Williams, with assistance from Mark Trengove.
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63Bryn Du3.5SN 940 421147, 1601884621932AClepyn Melyn
SN 91224 44282
SN 936 431443Also recorded by the Ordnance Survey as Pimp Cwtir [sic]. The summit is situated within the Sennybridge Artillery Range Training Area.
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64Pt. 26m3.48SM 704 22315735262631CYnys DewiSM 72411 25237N/AN/AThe summit is situated on an island or tidal island. Summit height from the Ordnance Survey enlarged Geograph map.
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65Clawdd Du Mawr3.42SN 851 690135, 136, 147200533.325.831CCarn yr HyrddodSN 88593 68841SN 849 690507.4533.3m summit height and 507.4m bwlch height (25.8m drop) from LIDAR analysis initially conducted by Aled Williams and subsequently by Myrddyn Phillips.
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66Pt. 79m, Skomer3.41SM 726 09415736797931CSkomer
SM 76034 08976
N/AN/AThe summit is situated on an island or tidal island. This summit is the highest point of Skomer and is situated within an enclosure recorded as South Park on an 1842 Tithe map. Triangulation pillar with 79.357m flush bracket height situated on summit area.
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67Ynys Gwelltog3.4SM 704 22415735565631CYnys DewiSM 72411 25237SM 704 225N/AThe summit is situated on an island or tidal island. Summit height from the Ordnance Survey enlarged Geograph map.
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68Pt. 22.2m3.4SM 701 2261573522.222.231CYnys DewiSM 72411 25237SM 701 226N/AThe summit is situated on an island. 22.2m summit height from LIDAR analysis conducted by Aled Williams.
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69Pt. c 16m3.4SM 701 22615735c16c1631CYnys DewiSM 72411 25237SM 701 226N/AThe summit is situated on an island or tidal island.
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70Cerrig Llwyd y Rhestr3.39SN 848 606147187, 200c5951831CDrygarn FawrSN 86903 63402SN 848 603c577Drop value ascertained from, and included in the Pellennig list due to, a 17.8m basic levelling survey conducted by Myrddyn Phillips.
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71Banc Blaen Merin3.38SN 792 788135, 147213537c4831CDraws DrumSN 76941 81214SN 801 790c489Name composition in accordance with standard modern Welsh and upland place-name principles. Banc Blaen Merin is the locally known name for this hill. The farm (SN 800 796) and river that this name relates to has more often been recorded by the Ordnance Survey as Myherin. However, R.J.Thomas in 'Enwau Afonydd a Nentydd Cymru' (1938) provides substantial evidence for the name being Merin, with sources dating back to 1425. Additionally, the 'Blaen Myherin Farm, North Ceredigion, Historic Building Recording' report (No. 2011/11) as prepared by the Dyfed Archaeological Trust also highlights historical records for Blaen Merin dating back to c.1540.
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72Twyn Rhyd Car3.375SN 960 422147, 160188453.534.532AClepyn MelynSN 99411 42150SN 956 425419Name composition in accordance with standard modern Welsh and upland place-name principles. 453.5m summit height from Trimble GeoXH 6000 survey conducted by Myrddyn Phillips. 419.0m bwlch height from LIDAR data analysed by Aled Williams. The summit is situated within the Sennybridge Artillery Range Training Area.
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73Ynys Cantwr3.375SM 705 22315735555531CYnys DewiSM 72411 25237SM 705 225N/AThe summit is situated on an island or tidal island. Height of 55m taken from the Ordnance Survey 1:50,000 Landranger map (54m on the Ordnance Survey 1:25,000 Explorer and enlarged Geograph maps).
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74Mynydd Lluest y Rhos3.36SN 765 92013523, 215528.3* 30.031ABanc Llechwedd MawrSN 77867 95108SN 767 925498.3Name taken from an 1844 Tithe map, which confirms this hill as being the highest point on the former sheep-walk of Lluest y Rhos. 528.3m summit height and 498.3m bwlch height (30.0m drop) from Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
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75Mew Stone3.36SM 727 08315736606031CSkomer
SM 76034 08976
SM 728 084N/AThe summit is situated on an island or tidal island.
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76Esgair Cerrig3.35SN 952 432147, 160188456.435.632AClepyn MelynSN 96751 46303SN 951 440420.8Esgair Cerrig is the locally known name for this hill. Also recorded by the Ordnance Survey as Pen yr Hysfa. The summit is situated within the Sennybridge Artillery Range Training Area and is known to the military as Gallows Hill. 456.4m summit height and 420.8m bwlch height (35.6m drop) from Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
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77Gnol Ddu3.35SN 823 599147187, 200529.917.231CDrygarn FawrSN 80265 57355SN 824 602512.6Gnol Ddu is the locally known name for this hill. Also recorded by the Ordnance Survey as Drum Nant yr Helyg. 529.9m summit height and 512.6m bwlch height (17.2m drop) from LIDAR analysis conducted by Aled Williams.
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78Carn Hyddgen3.34SN 792 9081352155665231APumlumon FawrSN 77500 87966SN 803 926514Carn Hyddgen is the locally known name for this hill. The highest point on Mynydd Hyddgen; one (or both) of the summit cairns is recorded by the Ordnance Survey as Carn Gwilym/Wilym, which also appears on a 1788 Gogerddan Estate map. Drop value from 514m bwlch spot height on the Ordnance Survey Vector Map Local hosted on the Geograph website and which is entitled the Interactive Coverage Map.
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79Bera Mawr3.325SH 674 68211517793.729.830BCarnedd LlywelynSH 67559 71594SH 675 681763.9793.7m summit height from a Leica RX1250 survey conducted by Alan Dawson and 763.9m bwlch height (29.8m drop) from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
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80Carn Llundain3.32SM 69623415735135.8135.831CYnys DewiSM 72411 25237N/AN/AThe summit is situated on an island or tidal island. Name composition in accordance with standard modern Welsh and upland place-name principles. Triangulation pillar with 135.940m flush bracket height situated on summit area. This summit is the highest point of Ynys Dewi. 135.8m summit height (and therefore also drop) from a Trimble GeoXH survey conducted by Myrddyn Phillips.
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81Trum y Gŵr3.31SN 830 718135, 136, 1472005241631CCarn yr HyrddodSN 83196 75149SN 826 718508Drop value ascertained from, and included in the Pellennig list due to, a 16.5m basic levelling survey conducted by Myrddyn Phillips.
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82Ynys Llanddwyn3.31SH 388 62911426321.820.330AYnys MônSH 41506 64930SH 390 6341.5The summit is situated on an island or tidal island. 21.8m summit height and 1.5m bwlch height (20.3m drop) from LIDAR analysis conducted by Myrddyn Phillips.
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83Priddellau3.3SN 854 677135, 136, 147187, 2005343131CCarn yr Hyrddod
SN 88594 68827
SN 853 682503534m summit height taken from Ordnance Survey data hosted on the WalkLakes website.
93
84Twll y Gwyddel3.3SM 705 2251573516.415.631CYnys DewiSM 72411 25237SM 705 2250.816.4m summit height and 0.8m bwlch height (15.6m drop) from LIDAR analysis conducted by Aled Williams.
94
85Foel Grafiau3.25SN 759 92013523, 2154932731ABanc Llechwedd MawrSN 73457 89950SN 761 920466Drop value ascertained from a 26.7m basic levelling survey conducted by Myrddyn Phillips.
95
86Foel Fawr3.25SM 705 2251573571.930.131CYnys DewiSM 72411 25237SM 705 22641.9The summit is situated on an island or tidal island. 71.9m summit height and 41.9m bwlch height (30.1m drop) from a Trimble GeoXH survey conducted by Myrddyn Phillips.
96
87Bryn Moel3.225SN 772 91113523, 215491c3531ABanc Llechwedd MawrSN 77500 87966SN 768 914c456The name Bryn Moel also appears for this hill on a 1788 Gogerddan Estate map.
97
88Foel Cedig3.2SH 981 283125255667.5180.130EFoel CedigSH 95151 29364SH 944 273487.4667.5m summit height from a Leica GS15 survey conducted by John Barnard and Graham Jackson on the 15.09.18. 487.4m bwlch height from a Trimble GeoXH 6000 survey conducted by Alan Dawson and Myrddyn Phillips on the 19.10.16.
98
89Disgwylfa3.2SN 815 17816012543.5c4132AFan BrycheiniogSN 84137 15971SN 815 172c503543.5m summit height from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
99
90Y Groes Fagl3.19SH 988 290125255* 659.015.530ECyrniau NodSJ 00911 31437SH 988 287643.5Bwlch name composition in accordance with standard modern Welsh and upland place-name principles. 659.0m summit height and 643.5m bwlch height (15.5m drop) from a Trimble GeoXH 6000 survey conducted by John Barnard and Myrddyn Phillips, with a level and staff line survey also conducted giving 15.5m of drop.
100
91Llethr Brith3.185SN 756 614146, 147187527.618.731CEsgair Wen
SN 75542 64600
SN 753 614508.9527.6m summit height and 508.9m bwlch height (18.7m drop) from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips and Aled Williams.