Y Trichant - The 300m Hills of Wales

	A	B	C	D	E	F	G	H	I	K	L	M	N	O
1	© 2013 - 2022 Myrddyn Phillips. 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 author.
2	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/ ).
3
4	Y Trichant - The 300m Hills of Wales
5
6	Welsh hills at or above 300m and below 400m in height with 30m minimum drop with an accompanying Sub-Trichant list taking in Welsh hills at or above 300m and below 400m in height with 20m or more and below 30m of drop
7
8
9	Carnedd Llywelyn
10
11	Name		Summit Height (m)	1:50,000 Map	1:25,000 Map	Summit Grid Reference	Summit Grid Reference extracted from		Drop (m)	Bwlch Grid Reference	Bwlch Grid Reference extracted from		Bwlch Height (m)	Notes
12
13	Pen y Gaer		386	115	17	SH 74987 69315	bolt in rock via OS Trig Database		37	SH 74643 69256	spot height		349	Numerical Data: Summit height taken from the 386.486m height given to a bolt in rock in the OS Trig Database. 349m bwlch height taken from the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
14	Penmaen Mawr		385.9	115	17	SH 70292 75650	LIDAR		31.4	SH 70440 75241	LIDAR		354.5	Numerical Data: 385.9m summit height and 354.5m bwlch height (31.4m drop) from LIDAR analysis initially conducted by Aled Williams and subsequently by Myrddyn Phillips. Listing History: First published listing - 300-499 Man Eng Wales published in 2006 on the RHB Yahoo Group file database and compiled by Myrddyn Phillips with data augmented from E D 'Clem' Clements.
15	Craig Hafodwen		379.0	115	17	SH 73034 75343	LIDAR		36.6	SH 72953 75102	LIDAR		342.4	Numerical Data: 379.0m summit height and 342.4m bwlch height (36.6m drop) from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
16	Foel Lus		360.0	115	17	SH 73238 76184	LIDAR		60.1	SH 73386 75791	LIDAR		299.9	Numerical Data: 360.0m summit height and 299.9m bwlch height (60.1m drop) from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
17	Mynydd Bwlchyrhaearn		332	115	17	SH 77298 59893	hand-held GPS via DoBIH	c	84	SH 76615 59643	interpolation	c	248	Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
18	Carreg Wen		327	115	17	SH 76257 58352	spot height		73	SH 75783 58836	LIDAR		254.4	Place Name Information: Hill name taken from the Ordnance Survey Draft Surveyors map. Numerical Data: 254.4m bwlch height from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
19	Pen y Drum		319	115	17	SH 77077 60863	hand-held GPS via DoBIH		42	SH 77362 60573	LIDAR		276.9	Place Name Information: Hill name taken from the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map. Numerical Data: 276.9m bwlch height from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
20	Cerrig y Ddinas		313.5	115	17	SH 75427 73948	Trimble GeoXH 6000		30.5	SH 75140 73786	Trimble GeoXH 6000		283	Numerical Data: 313.5m summit height and 283.0m bwlch height (30.5m drop) from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
21	Glynllugwy	c	309	115	17	SH 75489 59245	hand-held GPS via DoBIH	c	38	SH 75308 59501	interpolation	c	271	Place Name Information: The bounded land where the summit of this hill is situated is named Glynllygwy on the Tithe map for the parish of Llanrwst. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
22	Maen Esgob		300.0	115	17	SH 74877 75900	Trimble GeoXH 6000		30.8	SH 74870 75664	Trimble GeoXH 6000		269.2	Numerical Data: 300.0m summit height and 269.2m bwlch height (30.8m drop) from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
23
24	Penmaen Mawr		390.4	115	17	SH 69865 75523	Trimble GeoXH 6000		26.9	SH 70332 75118	LIDAR		363.5	Numerical Data: 390.4m summit height from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips and Aled Williams and 363.5m bwlch height (26.9m drop) from LIDAR analysis initially conducted by Aled Williams and subsequently by Myrddyn Phillips. Listing History: First published listing - Y Pedwarau - The 400m Hills of Wales published in 2017 on the Mapping Mountains website and compiled by Myrddyn Phillips and Aled Williams.
25	Dinas		325.9	115	17	SH 69978 73828	LIDAR		24.4	SH 70198 73941	LIDAR		301.5	Numerical Data: 325.9m summit height and 301.5m bwlch height (24.4m drop) from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First published listing - Y Trichant - The 300m Hills of Wales published in 2022 on the Mapping Mountains website and compiled by Myrddyn Phillips.
26	Clogwyn Mawr		345.7	115	17	SH 72874 58313	LIDAR		23.9	SH 72844 58514	LIDAR		321.8	Numerical Data: 345.7m summit height and 321.8m bwlch height (23.9m drop) from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First published listing - Y Trichant - The 300m Hills of Wales published in 2022 on the Mapping Mountains website and compiled by Myrddyn Phillips.
27	Pt. 343.1m		343.1	115	17	SH 72842 58446	LIDAR		20.5	SH 72831 58352	LIDAR		322.6	Numerical Data: 343.1m summit height and 322.6m bwlch height (20.5m drop) from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First published listing - Y Trichant - The 300m Hills of Wales published in 2022 on the Mapping Mountains website and compiled by Myrddyn Phillips.
28	Mynydd Deulyn		382	115	17	SH 75657 60903	spot height	c	20	SH 75760 61053	interpolation	c	362	Listing History: First published listing - Y Trichant - The 300m Hills of Wales published in 2022 on the Mapping Mountains website and compiled by Myrddyn Phillips.
29
30
31
32
33
34	Glyder Fawr
35
36	Name		Summit Height (m)	1:50,000 Map	1:25,000 Map	Summit Grid Reference	Summit Grid Reference extracted from		Drop (m)	Bwlch Grid Reference	Bwlch Grid Reference extracted from		Bwlch Height (m)	Notes
37
38	Foel Gron		351.6	114, 115	17, 263	SH 58359 62170	Trimble GeoXH 6000		32.3	SH 58675 62194	LIDAR		319.3	Numerical Data: 351.6m summit height from a Trimble GeoXH 6000 survey and 319.3m bwlch height (32.3m drop) from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
39	Pen y Bigil		331.0	114, 115	17, 263	SH 57600 62119	Trimble GeoXH 6000		38.4	SH 58014 62043	LIDAR		292.6	Numerical Data: 331.0m summit height from a Trimble GeoXH 6000 survey and 292.6m bwlch height (38.4m drop) from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
40
41
42
43
44
45	Yr Wyddfa
46
47	Name		Summit Height (m)	1:50,000 Map	1:25,000 Map	Summit Grid Reference	Summit Grid Reference extracted from		Drop (m)	Bwlch Grid Reference	Bwlch Grid Reference extracted from		Bwlch Height (m)	Notes
48
49	Panelau		337.6	115	17	SH 61301 50197	Trimble GeoXH 6000		50.4	SH 61341 50439	Trimble GeoXH 6000		287.2	Place Name Information: Hill name taken from the Ordnance Survey One-Inch 'Old Series' map. Numerical Data: 337.6m summit height and 287.2m bwlch height (50.4m drop) from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
50
51	Pen Gallt y Llyn		309.1	115	17	SH 61964 50400	LIDAR		20.1	SH 61833 50330	LIDAR		289.0	Numerical Data: 309.1m summit height and 289.0m bwlch height (20.1m drop) from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First published listing - Y Trichant - The 300m Hills of Wales published in 2022 on the Mapping Mountains website and compiled by Myrddyn Phillips.
52
53
54
55
56
57	Moel Hebog
58
59	Name		Summit Height (m)	1:50,000 Map	1:25,000 Map	Summit Grid Reference	Summit Grid Reference extracted from		Drop (m)	Bwlch Grid Reference	Bwlch Grid Reference extracted from		Bwlch Height (m)	Notes
60
61	Craig y Garn		362.3	124	254	SH 51088 44445	LIDAR		132.8	SH 50911 45703	LIDAR		229.5	Numerical Data: 362.3m summit height and 229.5m bwlch height (132.8m drop) from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First known listing - The Yeamans of England + Wales compiled in 1992/1993 by E D 'Clem' Clements and first published on the RHB Yahoo Group file database in 2003.
62	Mynydd y Cilgwyn		347	115, 123	17, 254	SH 49764 54283	hand-held GPS via DoBIH	c	64	SH 50583 54947	interpolation	c	283	Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
63	Moel Smytho		341.9	115	17, 254	SH 52096 57676	LIDAR		31.4	SH 52151 57266	LIDAR		310.5	Numerical Data: 341.9m summit height and 310.5m bwlch height (31.4m drop) from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
64	Y Garreg		336.8	115	17, 254	SH 55729 53707	Trimble GeoXH 6000		91.3	SH 55528 53380	LIDAR		245.5	Place Name Information: Y Garreg is a locally known name for this hill. Numerical Data: 336.8m summit height from a Trimble GeoXH 6000 survey and 245.5m bwlch height (91.3m drop) from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
65
66	Pt. 364m		364	124	18	SH 58103 44919	spot height	c	28	SH 58039 44818	interpolation	c	336	Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
67	Pen yr Allt		344.6	124	18, 254	SH 56773 41894	Trimble GeoXH 6000		27.2	SH 56774 42418	Trimble GeoXH 6000		317.4	Numerical Data: 344.6m summit height and 317.4m bwlch height (27.2m drop) from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips and Aled Williams. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
68	Clogwyn y Barcut		348.6	115	17, 254	SH 54257 53187 & SH 54260 53187	LIDAR		20.7	SH 54422 53087	LIDAR		327.9	Numerical Data: 348.6m summit height and 327.9m bwlch height (20.7m drop) from LIDAR analysis conducted by Myrddyn Phillips, with LIDAR giving two positions of equal height for the summit. Listing History: First published listing - Y Trichant - The 300m Hills of Wales published in 2022 on the Mapping Mountains website and compiled by Myrddyn Phillips.
69
70
71
72
73
74	Yr Eifl
75
76	Name		Summit Height (m)	1:50,000 Map	1:25,000 Map	Summit Grid Reference	Summit Grid Reference extracted from		Drop (m)	Bwlch Grid Reference	Bwlch Grid Reference extracted from		Bwlch Height (m)	Notes
77
78	Pen y Gaer		389	115, 123	254	SH 42903 45551	hand-held GPS via DoBIH		53	SH 42877 45757	spot height		336	Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
79	Carn Fadrun		371.2	123	253	SH 27864 35181	LIDAR		342.9	SH 30882 38451	LIDAR		28.3	Place Name Information: Composition of hill name ascertained from Rhestr o Enwau Lleoedd A Gazetteer of Welsh Place-Names. Numerical Data: 371.2m summit height and 28.3m bwlch height (342.9m drop) from LIDAR analysis conducted by Myrddyn Phillips. Triangulation pillar with 371.551m flush bracket height situated on the summit area at SH 27863 35182. Listing History: First published listing - The Relative Hills of Britain published in 1992 by Cicerone Press and compiled by Alan Dawson.
80	Mynydd Carnguwch		357.7	123	253, 254	SH 37466 42925	Leica GS15 & Trimble GeoXH 6000		102	SH 36852 43487	Leica GS15 & Trimble GeoXH 6000		255.6	Numerical Data: 357.7m summit height and 255.6m bwlch height (102.0m drop) from a Leica GS15 survey conducted by John Barnrad, Graham Jackson and Myrddyn Phillips and a Trimble GeoXH 6000 survey conducted by John Fitzgerald. Listing History: First known listing - The Yeamans of England + Wales compiled in 1992/1993 by E D 'Clem' Clements and first published on the RHB Yahoo Group file database in 2003.
81	Moel Penllechog		316	123	254	SH 38933 46019	hand-held GPS via DoBIH		53	SH 39358 46196	spot height		263	Place Name Information: Composition of hill name ascertained from Rhestr o Enwau Lleoedd A Gazetteer of Welsh Place-Names. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
82	Mynydd y Rhiw		305	123	253	SH 22850 29392	hand-held GPS via DoBIH		240	SH 23636 34755	LIDAR		65.4	Place Name Information: Composition of hill name ascertained from Rhestr o Enwau Lleoedd A Gazetteer of Welsh Place-Names. Numerical Data: Summit height (approximately 304.855m) ascertained from highest rock being approximately 5cm higher than the top of the 304.845m flush bracket that is adjoined to a triangulation pillar which is situated on the summit area at SH 22845 29388. 65.4m bwlch height from LIDAR analysis conducted by Myrddyn Phillips. Listing History: First published listing - The Relative Hills of Britain published in 1992 by Cicerone Press and compiled by Alan Dawson.
83
84	Murgwyn		302	123	253, 254	SH 35128 44215	spot height		28	SH 35270 44043	spot height		274	Place Name Information: Murgwyn is a locally known name for the hill/land where the summit of this hill is situated. Numerical Data: 302m summit height taken from the 990ft (301.8m) height on the Ordnance Survey series of Six-Inch maps. 274m bwlch height taken from the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
85
86
87
88
89
90	Moel Siabod
91
92	Name		Summit Height (m)	1:50,000 Map	1:25,000 Map	Summit Grid Reference	Summit Grid Reference extracted from		Drop (m)	Bwlch Grid Reference	Bwlch Grid Reference extracted from		Bwlch Height (m)	Notes
93
94	Mynydd Cribau		345	115	17	SH 75879 55788	hand-held GPS via DoBIH		92	SH 74189 55163 & SH 74196 55161	LIDAR		252.9	Numerical Data: 252.9m bwlch height from LIDAR analysis conducted by Myrddyn Phillips, with LIDAR giving two positions of equal height for the bwlch. Listing History: First published listing - The Welsh 300 Metre Peaks published in 2004 on Geoff Crowder's v-g.me website and Mike Grant's 5everdene website and compiled by Myrddyn Phillips.
95
96
97
98
99
100	Moelwyn Mawr