Y Pellennig - Remotest Hills of Wales - All Wales
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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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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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8
1West Tump16.33SM 596 09315736171731CGwales
SM 76034 08976
SM 596 093N/AThe summit is situated on an island or tidal island.
9
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.
10
3Emsger7.725SM 651 2261573533.733.731CBishops and Clerks
SM 72411 25237
N/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 Clerks
SM 72411 25237
N/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.
12
5Pt. 22m, North Bishop6.275SM 666 27715735222231CBishops and Clerks
SM 72411 25237
N/AN/AThe summit is situated on an island or tidal island.
13
6Pt. 21m, North Bishop6.2SM 667 27815735212131CBishops and Clerks
SM 72411 25237
N/AN/AThe summit is situated on an island or tidal island.
14
7North Bishop6SM 670 28015735444431CBishops and Clerks
SM 72411 25237
N/AN/AThe summit is situated on an island or tidal island. Highest point in the chain of islets known as North Bishop.
15
8Pt. 23m, Carreg Rhoson5.95SM 664 25315735232331CBishops and Clerks
SM 72411 25237
N/AN/AThe summit is situated on an island or tidal island.
16
9Pt. 24m, North Bishop5.9SM 672 28115735242431CBishops and Clerks
SM 72411 25237
N/AN/AThe summit is situated on an island or tidal island.
17
10
Pt. c 20m, Carreg Rhoson
5.85SM 665 25415735c20c2031CBishops and Clerks
SM 72411 25237
N/AN/AThe summit is situated on an island or tidal island.
18
11Pt. 23m, Carreg Rhoson5.775SM 666 25415735232331CBishops and Clerks
SM 72411 25237
N/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 Clerks
SM 72411 25237
N/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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14The Head5.31SM 729 04615736c55c5531CSkokholm
SM 76034 08976
N/AN/AThe summit is situated on an island or tidal island. This summit is the highest point of Skokholm.
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15Pt. 22m, Carreg Rhoson5.25SM 671 25615735222231CBishops and Clerks
SM 72411 25237
N/AN/AThe summit is situated on an island or tidal island.
23
16
Pt. c 30m, Carreg Rhoson
5.175SM 672 25615735c30c3031CBishops and Clerks
SM 72411 25237
N/AN/AThe summit is situated on an island or tidal island.
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17Pt. 24m, Carreg Rhoson5.05SM 673 25715735242431CBishops and Clerks
SM 72411 25237
N/AN/AThe summit is situated on an island or tidal island.
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18Ynys Echni4.975ST 221 646171, 182151323232CYnys Echni
ST 18683 68185
N/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 17816012467.34132AFan Brycheiniog
SN 78492 12918
SN 786 174426467.3m summit height from Trimble GeoXH 6000 survey conducted by Myrddyn Phillips. Drop value from 426m bwlch height on the Ordnance Survey enlarged Geograph map. Tyle Garw holds the distinction of being the remotest hill of mainland Wales.
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20Ynysoedd y Moelrhoniaid4.875SH 267 94711426221.721.730A
Ynysoedd y Moelrhoniaid
SH 30321 91435
N/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 622147
187, 200
4763131CDrygarn Fawr
SN 77033 65470
SN 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 94511426215.215.230A
Ynysoedd y Moelrhoniaid
SH 30321 91435
N/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 950114262181830A
Ynysoedd y Moelrhoniaid
SH 30855 92060
SH 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 17616012473.3c5632AFan Brycheiniog
SN 78492 12918
SN 795 187c416Cerrig 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 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 841 701
135, 136, 147
200528.815.531CCarn yr Hyrddod
SN 88586 69399
SN 838 700513.3528.8m summit height and 513.3m bwlch height (15.5m drop) from LIDAR data analysed by Aled Williams.
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28Carnedd Uchaf4.52SH 686 669115179263230BCarnedd Llywelyn
SH 73190 66331
SH 691 673894Carnedd 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. Drop value from 894m bwlch height on the Ordnance Survey enlarged Geograph map.
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29Cnapyn Drawsffos4.51SN 834 706
135, 136, 147
200548.14631CCarn yr Hyrddod
SN 83196 75149
SN 831 713502548.1m summit height from LIDAR data analysed 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 659115179764030BCarnedd Llywelyn
SH 73190 66331
SH 688 652936Emergency mountain refuge situated just below the summit.
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31Foel Ganol4.3SN 809 916135, 136
214, 215
548c2531APumlumon Fawr
SN 80076 95840
SN 808 918c523Foel 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, 136
214, 215
5653331APumlumon Fawr
SN 77500 87966
SN 795 915532Foel 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'. The drop value was ascertained from a basic levelling survey conducted by Myrddyn Phillips in conjunction with Ordnance Survey summit heights.
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33Esgair Garthen4.26SN 825 642147
187, 200
5072131CDrygarn Fawr
SN 86717 63600
SN 823 639486Drop value from 486m bwlch height on the Ordnance Survey enlarged Geograph map.
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34Llethr Gwaered4.225SN 801 626147
187, 200
4902631CDrygarn Fawr
SN 77033 65470
SN 794 630464Llethr Gwaered is the locally known name for this hill.
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35Blaen Rhestr4.2SN 843 693
135, 136, 147
200547c3831CCarn yr Hyrddod
SN 88582 69378
SN 837 689c509Roofed 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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38Ynys Bery4.1SM 700 21815735717131CYnys Dewi
SM 72411 25237
N/AN/AThe summit is situated on an island or tidal island. Also recorded by the Ordnance Survey as Margery Island. A less remote (3.925km) second summit of same map height is situated at SM 701 219.
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39Foel Isaf4.075SN 803 614147
187, 200
473c3931CDrygarn Fawr
SN 79297 57549
SN 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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40Mynydd 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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41Pt. 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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42Foel Fras3.975SH 696 68111517c944c6130BCarnedd Llywelyn
SH 73190 66331
SH 688 665883Estimated summit height taken from highest embedded rock compared to 943.051m flush bracket height on triangulation pillar, which is situated on the summit area. Drop value from 883m bwlch height on the Ordnance Survey enlarged Geograph map.
50
43Chapel Point3.96SS 142 95915836c57c1531CYnys Bŷr
SS 11702 98964
SS 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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44Carnedd Llywelyn3.95SH 683 64311517106475030BCarnedd Llywelyn
SH 67752 60472
SH 675 604314Name composition in accordance with standard modern Welsh and upland place-name principles. Drop value from 314m bwlch height on Harvey Maps.
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45Llethr Hir3.95SN 833 671
135, 136, 147
187, 200
c486c3331CCarn yr Hyrddod
SN 79418 68033
SN 835 674c453
53
46Pumlumon Arwystli3.925SN 814 8771352147416431APumlumon Fawr
SN 80387 83956
SN 808 873677Also recorded by the Ordnance Survey as Pen Pumlumon Arwystli and by the colloquial alternative Plynlimon Arwystli. Second summit of same map height at SN 815 877 on the Ordnance Survey enlarged Geograph map. Drop value from 677m bwlch height on the Ordnance Survey enlarged Geograph map.
54
47Drygarn Fawr3.9SN 862 584147
187, 200
645c25731CDrygarn Fawr
SN 83624 55531
SN 857 754c388Also recorded by the Ordnance Survey as Trigarn. Summit height from 2,115ft (644.7m) levelled height on the Ordnance Survey 1:10,560 map, which matches the rounded up 645m height on current Ordnance Survey 1:50,000 Landranger maps. Triangulation pillar with 641.604m flush bracket height situated at SN 862 583.
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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.
56
49Ochr Llygnant3.838SN 796 9171352155501531APumlumon Fawr
SN 78865 95482
SN 799 917535Analysis of a 1788 Gogerddan Estate map suggests that the name is probably a shortening of Ochr Helygnant. Summit height from 1804ft (549.9m) height on the Ordnance Survey 1:10,560 map. Drop value ascertained from, and included in Y Pellennig list due to, a 15.1m basic levelling survey conducted by Myrddyn Phillips.
57
50Carn Fadog3.825SN 767 171160125122632AFan Brycheiniog
SN 73201 18538
SN 767 177486Drop value ascertained from a 26.4m basic levelling survey conducted by Myrddyn Phillips.
58
51Bera Bach3.7SH 672 67711517806.417.630BCarnedd Llywelyn
SH 63812 66305
SH 675 676788.8806.4m summit height and 788.8m bwlch height (17.6m drop) from Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
59
52Yr Elen3.625SH 673 65111517962c5430BCarnedd Llywelyn
SH 63759 66029
SH 676 647c908Also locally known by the colloquial alternative Yr Elan and recorded as Moel yr Elain by Thomas Pennant in 1781.
60
53Drum yr Eira3.625SN 851 590147
187, 200
c601c1931CDrygarn Fawr
SN 82984 56049
SN 856 584582Drop value from 582m bwlch height on the Ordnance Survey enlarged Geograph map.
61
54Llechwedd Crin3.6SN 816 922135, 136
214, 215
539c2031APumlumon Fawr
SN 83757 95176
SN 809 922c519
62
55Ynys Eilun3.58SM 707 21915735262631CYnys Dewi
SM 72411 25237
N/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).
63
56Cefn Perfedd3.575SJ 099 373125255600.832.330ECraig Berwyn
SJ 12976 35524
SJ 097 371568.5Cefn Perfedd is the locally known name for this hill. The name also appears on an historical Ordnance Survey map. 600.8m summit height and 568.5m bwlch height (32.3m drop) from Leica RX1250 GPS survey conducted by Alan Dawson.
64
57Aran Fawddwy3.56SH 862 223124, 1252390667130EAran FawddwySH 88374 25257 SH 85256 18958SH 850 267235Triangulation pillar with 906.780m flush bracket height situated on summit area, with current Ordnance Survey and Harvey Maps giving a summit height of 905m. Drop value from 235m bwlch height on the Ordnance Survey 1:50,000 Landranger map (234m on current Harvey Maps).
65
58Crug Gynon3.55SN 801 638147
187, 200
5256431CDrygarn Fawr
SN 77033 65470
SN 808 636461An alternative local name is Crug Garreg Lwyd. Drop value from 461m bwlch height on the Ordnance Survey enlarged Geograph map.
66
59Midland3.53SM 704 22215735303031CYnys Dewi
SM 72411 25237
N/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.
67
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.
68
61Cadair Fronwen3.5SJ 077 346125255783.473.330ECraig Berwyn
SJ 09970 31954
SJ 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 369125255621c3630ECraig Berwyn
SJ 06000 38792
SJ 090 365c585Name taken from a historical Ordnance Survey map. An alternative local name is Mynydd Plas y Faerdref.
70
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.
71
64Pt. 26m3.48SM 704 22315735262631CYnys Dewi
SM 72411 25237
N/AN/AThe summit is situated on an island or tidal island. Summit height from the Ordnance Survey enlarged Geograph map.
72
65Clawdd Du Mawr3.42SN 851 690
135, 136, 147
2005352731CCarn yr Hyrddod
SN 88593 68841
SN 849 690508Drop value ascertained from a 26.5m basic levelling survey conducted by Myrddyn Phillips.
73
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.
74
67Ynys Gwelltog3.4SM 704 22415735565631CYnys Dewi
SM 72411 25237
SM 704 225N/AThe summit is situated on an island or tidal island. Summit height from the Ordnance Survey enlarged Geograph map.
75
68Pt. c 16m3.4SM 701 22615735c16c1631CYnys Dewi
SM 72411 25237
SM 701 226N/AThe summit is situated on an island or tidal island.
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69Cerrig Llwyd y Rhestr3.39SN 848 606147
187, 200
5911831CDrygarn Fawr
SN 86903 63402
SN 848 603573Summit height from 1,938ft (590.7m) levelled height on the Ordnance Survey 1:10,560 map. Drop value ascertained from, and included in the Pellennig list due to, a 17.8m basic levelling survey conducted by Myrddyn Phillips.
77
70Banc Blaen Merin3.38SN 792 787135, 147213537c4931CDraws Drum
SN 76941 81214
SN 801 790c488Name 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 resords for Blaen Merin dating back to c.1540.
78
71Twyn Rhyd Car3.375SN 960 422147, 160188453.534.532AClepyn Melyn
SN 99411 42150
SN 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.
79
72Ynys Cantwr3.375SM 705 22315735555531CYnys Dewi
SM 72411 25237
SM 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).
80
73Mynydd Lluest y Rhos3.36SN 765 92013523, 215528.23031ABanc Llechwedd Mawr
SN 77867 95108
SN 767 925498.2Name taken from a non-Ordnance Survey source. Name taken from an 1844 Tithe map, which confirms this hill as being the highest point on the former sheep-walk of Lluest y Rhos. 528.2m summit height and 498.2m bwlch height (30.0m drop) from Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
81
74Mew Stone3.36SM 727 08315736606031CSkomer
SM 76034 08976
SM 728 084N/AThe summit is situated on an island or tidal island.
82
75Esgair Cerrig3.35SN 952 432147, 160188456.435.632AClepyn Melyn
SN 96751 46303
SN 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.
83
76Ganol Ddu3.35SN 823 599147
187, 200
c531c1731CDrygarn Fawr
SN 80265 57355
SN 824 603c514Ganol Ddu is the locally known name for this hill. Also recorded by the Ordnance Survey as Drum Nant yr Helyg and occasionally referred to using the colloquial form of Gnol Ddu. Included in the Pellennig list due to map contour interpolation.
84
77Carn Hyddgen3.34SN 792 9081352155665231APumlumon Fawr
SN 77500 87966
SN 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 height on the Ordnance Survey enlarged Geograph map.
85
78Bera Mawr3.325SH 674 68211517793.629.730BCarnedd Llywelyn
SH 67559 71594
SH 675 681763.9793.6m summit height and 763.9m bwlch height (29.7m drop) from Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
86
79Carn Llundain3.32SM 69623415735135.8135.831CYnys Dewi
SM 72411 25237
N/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.
87
80Trum y Gŵr3.31SN 830 718
135, 136, 147
2005241631CCarn yr Hyrddod
SN 83196 75149
SN 827 718508Drop value ascertained from, and included in the Pellennig list due to, a 16.5m basic levelling survey conducted by Myrddyn Phillips.
88
81Ynys Llanddwyn3.31SH 388 62911426321.419.630AYnys Môn
SH 41506 64930
SH 391 6341.9The summit is situated on an island or tidal island. 21.4m summit height and 1.9m bwlch height (19.6m drop) from Trimble GeoXH survey conducted by Myrddyn Phillips.
89
82Priddellau3.3SN 854 677
135, 136, 147
187, 200
c534c3131CCarn yr Hyrddod
SN 88594 68827
SN 853 682503The land at the designated summit grid reference is approximately one metre higher when compared to the land where the 533m spot height at grid reference SN 850 676 appears on the Ordnance Survey 1:25,000 Explorer and enlarged Geograph maps.
90
83Foel Grafiau3.25SN 759 92013523, 2154932731ABanc Llechwedd Mawr
SN 73457 89950
SN 761 920466Drop value ascertained from a 26.7m basic levelling survey conducted by Myrddyn Phillips.
91
84Foel Fawr3.25SM 705 2251573571.930.131CYnys Dewi
SM 72411 25237
SM 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.
92
85Bryn Moel3.225SN 772 91113523, 215491c3531ABanc Llechwedd Mawr
SN 77500 87966
SN 768 914c456The name Bryn Moel also appears for this hill on a 1788 Gogerddan Estate map.
93
86Disgwylfa3.2SN 815 17816012543.5c3732AFan Brycheiniog
SN 84137 15971
SN 815 173c507543.5m summit height from Trimble GeoXH 6000 survey conducted by Myrddyn Phillips.
94
87Y Groes Fagl3.19SH 988 29012525565915.530ECyrniau Nod
SJ 00911 31437
SH 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 Trimble GeoXH 6000 survey conducted by Myrddyn Phillips, which compliments a 15.5m line survey drop value conducted by G&J Surveys.
95
88Llethr Brith3.185SN 756 614146, 1471875271831CEsgair Wen
SN 75542 64600
SN 753 614509Summit height of 527m and bwlch height of 509m (18m drop) from the Ordnance Survey enlarged Geograph map.
96
89Mynydd Coch3.175SH 938 196125235694030ECarreg y Big
SH 90727 19343
SH 933 197529Triangulation pillar with 569.366m flush bracket height situated on summit area.
97
90Cefn Glas3.16SH 819 279124, 125234974530DRhobell Fawr
SH 84258 25788
SH 814 278452Drop value from 452m bwlch height on the Ordnance Survey enlarged Geograph map.
98
91Grug Crofftau3.15SN 750 612146, 147187532c2831CEsgair Wen
SN 71979 60473
SN 744 608c504Grug Crofftau is the locally known name for this hill.
99
92Foel Las3.15SN 759 92613523, 2154891631ABanc Llechwedd Mawr
SN 77867 95108
SN 762 925473Name taken from a non-Ordnance Survey source. Name taken from a 1788 Gogerddan Estate map. Drop value from 489m summit and 473m bwlch height on the Ordnance Survey enlarged Geograph map.
100
93West Beacon Point3.14SS 132 96215836606031CYnys Bŷr
SS 11702 98964
N/AN/AThe summit is situated on an island or tidal island. This summit is the highest point of Ynys Bŷr.
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