Trimble Surveys Myrddyn Phillips

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2			© 2013 - 2017 Myrddyn Phillips. Non-commercial copying is permitted provided attribution is preserved. Re-use of the data in this or another format requires the permission of the blog author.
3				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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5	Number (P14)	Number (P20)	Number (P30)	Date	Time	Satellites	Points	Group	Cardinal Hill	Region	Sub Region	Hill Number	Name	Alternative Ordnance Survey Name	1:50,000 Map	1:25,000 Map	Grid Reference (Map)	Summit / Bwlch	Map Height (m)	Raw Unprocessed Survey Height (m) OSGM15	Processed Survey Height (m)	Processed Survey Height (m) OSGM15	Grid Reference (Survey)	Drop (m)	Dominance (%)	Status	Measurement Uncertainty (m) (Height)	Standard Deviation (m)	Position of Trimble	Measurement Offset (m)	Estimated Accuracies	Terrain	Base Stations	Further comments
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7	1079	970	787	08/07/2025	6.20pm	18	300 (5 min)	Bleaklow Head		36		16531	Cown Edge Rocks	N/A	110	1	SK 02139 92010	Summit	c 410	411.728	Trimble converted to OSGM15	410.566	SK 02143 92031	84.8	20.66%	Four	0.00	0.029	Trimble on ground	0.00	Range 5-15cm: 100.00%	Rock in grazing field	Processed from nearest two available base stations - Manchester and Buxton
8	1078	969	786	08/07/2025	4.35pm	19	360 (6 min)	Kinder Scout		36		7735	South Head	N/A	110	1	SK 06101 84549	Summit	494	496.354	Trimble converted to OSGM15	493.302	SK 06100 84551	37.3	7.57%	Four	0.01	0.046	Trimble on ground	0.00	Range 5-15cm: 100.00%	Grass/earth 1 metre from base of cairn	Processed from nearest two available base stations - Buxton and Leek
9	1077	968	785	08/07/2025	3.42pm	16	300 (5 min)	Kinder Scout		36		16494	Mount Famine	N/A	110	1	SK 05630 84924	Summit	473	467.985	Trimble converted to OSGM15	471.839	SK 05626 84928	41.6	8.82%	Four	0.02	0.025	Trimble on ground	0.00	Range 5-15cm: 100.00%	Grass 1.5 metres from ridge fence	Processed from nearest two available base stations - Buxton and Leek
10				13/05/2025	2.25pm	17	300 (5 min)	Yr Wyddfa		Nroth Wales A	A1	N/A	Castell	N/A	115	17	SH 62566 51300	Summit	c 150	158.775	Trimble converted to OSGM15	157.167	SH 62554 51296	10.0	6.36%		0.075	0.031	Trimble on rucksack	0.32	Range 5-15cm: 100.00%	Grass	Processed from nearest two available base stations - St Asaph and Holyhead
11	1076	967	784	10/04/2025	10.14am	17	300 (5 min)	Axe Edge		36		18980	Old Man of Mow	N/A	118	258, 268	SJ 85840 57540	Summit 1C	335	340.725	Trimble converted to OSGM15	336.538 (336.515m average of three surveys prioritised)	SJ 85840 57540 (top of trig) (SJ 85825 57560 LIDAR grid reference prioritised)	143.5	42.65%	Hump, Tump	0.1	0.047	Trimble on top of trig	0.24m onset	Range 5-15cm: 100.00%	Rock pillar	Processed from nearest available one base station - Crewe
12				10/04/2025	10.04am	17	420 (7 min)	Axe Edge		36		18980	Old Man of Mow	N/A	118	258, 268	SJ 85840 57540	Summit 1B	335	340.643	Trimble converted to OSGM15	336.505 (336.515m average of three surveys prioritised)	SJ 85840 57540 (top of trig) (SJ 85825 57560 LIDAR grid reference prioritised)				0.1	0.032	Trimble on top of trig	0.24m onset	Range 5-15cm: 100.00%	Rock pillar	Processed from nearest available one base station - Crewe
13				10/04/2025	9.54am	19	300 (5 min)	Axe Edge		36		18980	Old Man of Mow	N/A	118	258, 268	SJ 85840 57540	Summit 1A	335	339.287	Trimble converted to OSGM15	336.503 (336.515m average of three surveys prioritised)	SJ 85840 57540 (top of trig) (SJ 85825 57560 LIDAR grid reference prioritised)				0.1	0.046	Trimble on top of trig	0.24m onset	Range 5-15cm: 100.00%	Rock pillar	Processed from nearest available one base station - Crewe
14				10/04/2025	10.32am	19	300 (5 min)	Axe Edge		36		2826	Mow Cop	N/A	118	258, 268	SJ 85840 57540	Summit 1C	335	340.289	Trimble converted to OSGM15	335.109 (335.167m average of three surveys prioritised)	SJ 85841 57544	11.5	3.42%	Submarilyn	0.00	0.038	Trimble on ground	0.00	Range 5-15cm: 100.00%	Embedded rock 3-4 metres from base of trig	Processed from nearest available one base station - Crewe
15				10/04/2025	10.24am	18	300 (5 min)	Axe Edge		36		2826	Mow Cop	N/A	118	258, 268	SJ 85840 57540	Summit 1B	335	339.968	Trimble converted to OSGM15	335.277 (335.167m average of three surveys prioritised)	SJ 85841 57544				0.00	0.062	Trimble on ground	0.00	Range 5-15cm: 100.00%	Embedded rock 3-4 metres from base of trig	Processed from nearest available one base station - Crewe
16				18/03/2025	4.04pm	17	300 (5 min)	Axe Edge		36		2826	Mow Cop	N/A	118	258, 268	SJ 85840 57540	Summit 1A	335	336.291	Trimble converted to OSGM15	335.115 (335.167m average of three surveys prioritised)	SJ 85841 57544				0.00	0.046	Trimble on ground	0.00	Range 5-15cm: 100.00%	Embedded rock 3-4 metres from base of trig	Processed from nearest available one base station - Crewe
17				10/04/2025	11.05am	11	300 (5 min)	Axe Edge		36		2826	Mow Cop	N/A	118	258, 268	SJ 85815 57541	Col	320m - 325m	332.419	Trimble converted to OSGM15	323.698	SJ 85828 57559				0.075	0.043	Trimble on rucksack	0.44	Range 5-15cm: 96.15%	Grass	Processed from nearest available one base station - Crewe
18				05.04.2025	1.52pm	16	300 (5 min)	Carn yr Hyrddod		South Wales B	B1		Lan Ddu Fawr	Llan Ddu Fawr	135, 147	213	SN 78659 69978	Summit 3	593	583.558	Trimble converted to OSGM15	592.662	SN 78761 69977				0.100	0.025	Trimble on rock	0.28	Range 5-15cm: 100.00%	Entrance to wind shelter	Processed from nearest available five base stations - Machynlleth, Brecon, Aberporth, Shobdon and Swansea
19				05.04.2025	1.36pm	16	300 (5 min)	Carn yr Hyrddod		South Wales B	B1		Lan Ddu Fawr	Llan Ddu Fawr	135, 147	213	SN 78659 69978	Summit 2	593	587.639	Trimble converted to OSGM15	592.696	SN 78762 69977				0.100	0.043	Trimble on rock	0.24	Range 5-15cm: 99.62%	Base of small rocks	Processed from nearest available five base stations - Machynlleth, Brecon, Aberporth, Shobdon and Swansea
20	1075			05.04.2025	1.15pm	17	300 (5 min)	Carn yr Hyrddod		South Wales B	B1		Lan Ddu Fawr	Llan Ddu Fawr	135, 147	213	SN 78659 69978	Summit 1	593	587.960	Trimble converted to OSGM15	592.724	SN 78759 69974	14.6	2.47%	Welsh Highland Sub-P15, Twin Top Dewey, Twin Top 500m Twmpau	0.100	0.024	Trimble on rock	0.11	Range 5-15cm: 100.00%	Grass 1.5 metres from edge of wind sheter	Processed from nearest available five base stations - Machynlleth, Brecon, Aberporth, Shobdon and Swansea
21				05.04.2025	12.44pm	15	300 (5 min)	Carn yr Hyrddod		South Wales B	B1		Lan Ddu Fawr	Llan Ddu Fawr	135, 147	213	SN 78959 70331	Bwlch 1B	570m - 580m	575.306	Trimble converted to OSGM15	578.035 (578.0825m average of two surveys)	SN 78931 70288				0.75	0.050	Trimble on rucksack	0.50	Range 5-15cm: 100.00%	Tussock grass	Processed from nearest available five base stations - Machynlleth, Brecon, Aberporth, Shobdon and Swansea
22				05.04.2025	12.32pm	16	300 (5 min)	Carn yr Hyrddod		South Wales B	B1		Lan Ddu Fawr	Llan Ddu Fawr	135, 147	213	SN 78959 70331	Bwlch 1A	570m - 580m	575.585	Trimble converted to OSGM15	578.130 (578.0825m average of two surveys)	SN 78931 70288				0.75	0.034	Trimble on rucksack	0.49	Range 5-15cm: 100.00%	Tussock grass	Processed from nearest available five base stations - Machynlleth, Brecon, Aberporth, Shobdon and Swansea
23				05.04.2025	12.02pm	17	300 (5 min)	Carn yr Hyrddod		South Wales B	B1	2207	Carn yr Hyrddod	Carnyrhyrddod	135, 147	213	SN 79069 70424	Summit 3	594	591.691	Trimble converted to OSGM15	592.590	SN 79068 70421				0.100	0.045	Trimble on rock	0.15	Range 5-15cm: 100.00%	Grass beside remains of ancient cairn	Processed from nearest available five base stations - Machynlleth, Brecon, Aberporth, Shobdon and Swansea
24	1074	966	783	05.04.2025	11.50am	19	300 (5 min)	Carn yr Hyrddod		South Wales B	B1	2207	Carn yr Hyrddod	Carnyrhyrddod	135, 147	213	SN 79069 70424	Summit 2	594	588.408	Trimble converted to OSGM15	592.729	SN 79069 70421	168.0	28.34%	Marilyn, Hump, Welsh Highland P15, Twin Top Dewey, Dodd, Twin Top 500m Twmpau	0.100	0.019	Trimble on rock	0.13	Range 5-15cm: 100.00%	Grass beside remains of ancient cairn	Processed from nearest available five base stations - Machynlleth, Brecon, Aberporth, Shobdon and Swansea
25				05.04.2025	11.38am	19	300 (5 min)	Carn yr Hyrddod		South Wales B	B1	2207	Carn yr Hyrddod	Carnyrhyrddod	135, 147	213	SN 79069 70424	Summit 1	594	587.790	Trimble converted to OSGM15	592.660	SN 59069 70421				0.100	0.052	Trimble on rock	0.14	Range 5-15cm: 100.00%	Grass beside remains of ancient cairn	Processed from nearest available five base stations - Machynlleth, Brecon, Aberporth, Shobdon and Swansea
26	1073	965	782	03.04.2025	12.15pm	18	300 (5 min)	Cowpe Moss		36		16512	Cowpe Lowe	N/A	103	21	SD 82349 20639	Summit	440	444.622	Trimble converted to OSGM15	439.753	SD 82346 20640	36.4	8.28%	Four	0.015	0.030	Trimble on ground	0.00	Range 5-15cm: 100.00%	Grass	Processed from nearest available one base station - Manchester
27	1072	964	781	02.04.2025	4.29pm	17	300 (5 min)	Cowpe Moss		36		16544	Brown Wardle	Brown Wardle Hill	109	21	SD 89835 18688	Summit	1,314ft/400.51m (1:10,560)	395.717	Trimble converted to OSGM15	400.251	SD 89820 18696	50.35	12.58%	Four	0.075	0.051	Trimble on ground	0.00	Range 5-15cm: 100.00%	Moor Grass	Processed from nearest available one base station - Manchester
28	1071	963	780	02.04.2025	2.47pm	23	300 (5 min)	Cowpe Moss		36		16511	Carr and Crags Moor	Carr & Crags Moor	103	21	SD 89403 25146	Summit	441	441.781	Trimble converted to OSGM15	440.716	SD 89386 25170	38.3	8.68%	Four	0.15	0.019	Trimble on rucksack	0.28	Range 5-15cm: 54.75%	Moor Grass	Processed from nearest available one base station - Manchester
29	1076	967	784	10/04/2025	10.14am	17	300 (5 min)	Axe Edge		36		18980	Old Man of Mow	N/A	118	258, 268	SJ 85840 57540	Summit 1C	335	340.725	Trimble converted to OSGM15	336.538 (336.515m average of three surveys prioritised)	SJ 85840 57540 (top of trig) (SJ 85825 57560 LIDAR grid reference prioritised)	143.5	42.65%	Hump, Tump	0.1	0.047	Trimble on top of trig	0.24m onset	Range 5-15cm: 100.00%	Rock pillar	Processed from nearest available one base station - Crewe
30				10/04/2025	10.04am	17	420 (7 min)	Axe Edge		36		18980	Old Man of Mow	N/A	118	258, 268	SJ 85840 57540	Summit 1B	335	340.643	Trimble converted to OSGM15	336.505 (336.515m average of three surveys prioritised)	SJ 85840 57540 (top of trig) (SJ 85825 57560 LIDAR grid reference prioritised)				0.1	0.032	Trimble on top of trig	0.24m onset	Range 5-15cm: 100.00%	Rock pillar	Processed from nearest available one base station - Crewe
31				10/04/2025	9.54am	19	300 (5 min)	Axe Edge		36		18980	Old Man of Mow	N/A	118	258, 268	SJ 85840 57540	Summit 1A	335	339.287	Trimble converted to OSGM15	336.503 (336.515m average of three surveys prioritised)	SJ 85840 57540 (top of trig) (SJ 85825 57560 LIDAR grid reference prioritised)				0.1	0.046	Trimble on top of trig	0.24m onset	Range 5-15cm: 100.00%	Rock pillar	Processed from nearest available one base station - Crewe
32				10/04/2025	10.32am	19	300 (5 min)	Axe Edge		36		2826	Mow Cop	N/A	118	258, 268	SJ 85840 57540	Summit 1C	335	340.289	Trimble converted to OSGM15	335.109 (335.167m average of three surveys prioritised)	SJ 85841 57544	11.5	3.42%	Submarilyn	0.00	0.038	Trimble on ground	0.00	Range 5-15cm: 100.00%	Embedded rock 3-4 metres from base of trig	Processed from nearest available one base station - Crewe
33				10/04/2025	10.24am	18	300 (5 min)	Axe Edge		36		2826	Mow Cop	N/A	118	258, 268	SJ 85840 57540	Summit 1B	335	339.968	Trimble converted to OSGM15	335.277 (335.167m average of three surveys prioritised)	SJ 85841 57544				0.00	0.062	Trimble on ground	0.00	Range 5-15cm: 100.00%	Embedded rock 3-4 metres from base of trig	Processed from nearest available one base station - Crewe
34				18/03/2025	4.04pm	17	300 (5 min)	Axe Edge		36		2826	Mow Cop	N/A	118	258, 268	SJ 85840 57540	Summit 1A	335	336.291	Trimble converted to OSGM15	335.115 (335.167m average of three surveys prioritised)	SJ 85841 57544				0.00	0.046	Trimble on ground	0.00	Range 5-15cm: 100.00%	Embedded rock 3-4 metres from base of trig	Processed from nearest available one base station - Crewe
35				10/04/2025	11.05am	11	300 (5 min)	Axe Edge		36		2826	Mow Cop	N/A	118	258, 268	SJ 85815 57541	Col	320m - 325m	332.419	Trimble converted to OSGM15	323.698	SJ 85828 57559				0.075	0.043	Trimble on rucksack	0.44	Range 5-15cm: 96.15%	Grass	Processed from nearest available one base station - Crewe
36				18/01/2025	12.26pm	17	300 (5 min)	Arenig Fawr		North Wales A	A2		Graig Fach	N/A	124	23	SH 79258 24924	Summit	c 510	502.488	Trimble converted to OSGM15	510.977	SH 79262 24920	10.0	1.96%	Welsh Sub-P15	N/R	0.094	Trimble on ground	0.00	Range 15-30cm: 56.84%	Rock	Processed from nearest available five base stations - Machynlleth, St Asaph, Aberdaron, Shrewsbury and Holyhead
37				18/01/2025	12.45pm	15	300 (5 min)	Arenig Fawr		North Wales A	A2		Graig Fach	N/A	124	23	SH 79275 24973	Bwlch	500m - 510m	490.401	Trimble converted to OSGM15	500.958	SH 79278 24975				N/R	0.029	Trimble on rucksack	0.34	Range 30-50cm: 42.75%	Grass	Processed from nearest available five base stations - Machynlleth, St Asaph, Aberdaron, Shrewsbury and Holyhead
38				18/01/2025	10.43am	16	600 (10 min)	Arenig Fawr		North Wales A	A2		Pt. 513.4m	N/A	124	23	SH 77553 24462	Summit	c 510	511.238	Trimble converted to OSGM15	513.414	SH 77569 24456	9.9	1.92%		0.01	0.050	Trimble on ground	0.00	Range 5-15cm: 95.65%	Grassy knoll	Processed from nearest available five base stations - Machynlleth, St Asaph, Aberdaron, Shrewsbury and Holyhead
39				18/01/2025	11.21am	18	660 (11 min)	Arenig Fawr		North Wales A	A2		Pt. 513.4m	N/A	124	23	SH 77541 24509	Bwlch	500m - 510m	501.772	Trimble converted to OSGM15	503.533	SH 77538 24513				0.10	0.061	Trimble on rucksack	0.55	Range 5-15cm: 93.79%	Bog	Processed from nearest available five base stations - Machynlleth, St Asaph, Aberdaron, Shrewsbury and Holyhead
40	1070	962	779	02/11/2024	3.51pm	19	300 (5 min)	Mynydd Epynt		South Wales B	B1	15626	Pt. 428.9m	N/A	147, 160	188	SO 03580 44971	Summit	c 430	425.250	Trimble converted to OSGM15	428.866	SO 03592 44968	32.1	7.49%	Pedwar	0.15	0.026	Trimble on rucksack	0.36	Range 5-15cm: 100.00%	Grass	Processed from nearest available five base stations - Brecon, Shobdon, Machynlleth, Cardiff and Swansea
41				22/10/2024	12.46pm	20	120 (2 min)	Pendle		36		16497	Little Hill	N/A	103	21	SD 91936 32451	Summit 3	c 465	473.425	Trimble converted to OSGM15	467.805	SD 91918 32521				0.30	0.024	Trimble on rucksack	0.44	Range 5-15cm: 100.00%	Moor grass	Processed from nearest available five base stations - Manchester, Leeds, Giggleswick, Blackpool and Daresbury
42				22/10/2024	12.39pm	10	120 (2 min)	Pendle		36		16497	Little Hill	N/A	103	21	SD 91936 32451	Summit 2	c 465	475.872	Trimble converted to OSGM15	468.111	SD 91915 32503				0.30	0.030	Trimble on rucksack	0.42	Range 5-15cm: 100.00%	Moor grass	Processed from nearest available five base stations - Manchester, Leeds, Giggleswick, Blackpool and Daresbury
43	1069	961	778	22/10/2024	12.32pm	18	120 (2 min)	Pendle		36		16497	Little Hill	N/A	103	21	SD 91936 32451	Summit 1	c 465	474.454	Trimble converted to OSGM15	468.211	SD 91916 32500	77.4	16.54%	Four	0.30	0.022	Trimble on rucksack	0.43	Range 5-15cm: 98.67%	Moor grass	Processed from nearest available five base stations - Manchester, Leeds, Giggleswick, Blackpool and Daresbury
44	1068	960	777	21/10/2024	3.51pm	17	300 (5 min)	Pendle		36		5317	Hoof Stones Height	N/A	103	21	SD 91421 29101	Summit	479	481.504	Trimble converted to OSGM15	479.298	SD 91475 29092	99.6	20.79%	Subhump, Four	0.04	0.074	Trimble on rucksack	0.38	Range 5-15cm: 100.00%	Grass on top of rocky outcrop	Processed from nearest available five base stations - Manchester, Leeds, Giggleswick, Daresbury and Hoober
45	1067	959	776	21/10/2024	2.00pm	19	300 (5 min)	Cowpe Moss		36		16506	Thieveley Pike	N/A	103	21	SD 87175 27118	Summit	449	453.202	Trimble converted to OSGM15	449.504	SD 87175 27121	55.7	12.39%	Four	0.02	0.066	Trimble on rucksack	0.36	Range 30-50cm: 96.54%	Grass	Processed from nearest available five base stations - Manchester, Leeds, Giggleswick, Daresbury and Blackpool
46				05/10/2024	3.04pm	18	180 (3 min)	Yr Wyddfa		Nroth Wales A	A1		Carreg Gwalch	N/A	115	17	SH 64238 55249	Summit	545 (546 WalkLakes)	552.697	Trimble converted to OSGM15	545.978	SH 64238 55249	14.7	2.70%	Welsh Highland Sub	0.00	0.037	Trimble on ground	0.00	Range 5-15cm: 100.00%	Rock	Processed from nearest available five base stations - St Asaph, Holyhead, Machynlleth, Aberdaron and Shrewsbury
47				05/10/2024	2.51pm	18	180 (3 min)	Yr Wyddfa		Nroth Wales A	A1		Carreg Gwalch	N/A	115	17	SH 64226 55161	Bwlch	530m - 535m (OS Maps)	535.391	Trimble converted to OSGM15	531.244	SH 64229 55166				N/R	0.130	Trimble on rucksack	0.24	Range 30-50cm: 58.87%	Grass	Processed from nearest available five base stations - St Asaph, Holyhead, Machynlleth, Aberdaron and Shrewsbury
48				05/10/2024	2.26pm	18	180 (3 min)	Yr Wyddfa		Nroth Wales A	A1		Pt. 563.0m	N/A	115	17	SH 63838 55175	Summit	c 560	567.937	Trimble converted to OSGM15	563.010	SH 63821 55162	10.2	1.82%	Welsh Highland Sub	N/R	0.022	Trimble on rucksack	0.19	Range 5-15cm: 89.97%	Grassy knoll	Processed from nearest available five base stations - St Asaph, Holyhead, Machynlleth, Aberdaron and Shrewsbury
49				05/10/2024	2.16pm	18	180 (3 min)	Yr Wyddfa		Nroth Wales A	A1		Pt. 563.0m	N/A	115	17	SH 63753 55180	Bwlch	550m - 560m	557.134	Trimble converted to OSGM15	552.787	SH 63750 55175				N/R	0.035	Trimble on rucksack	0.28	Range 5-15cm: 100.00%	Grass	Processed from nearest available five base stations - St Asaph, Holyhead, Machynlleth, Aberdaron and Shrewsbury
50				05/10/2024	12.48pm	19	300 (5 min)	Yr Wyddfa		Nroth Wales A	A1		Pt. 906.2m	N/A	115	17	SH 61987 55161	Summit	905	907.826	Trimble converted to OSGM15	906.209	SH 61983 55146	10.1	1.11%	Welsh Highland Sub	0.00	0.030	Trimble on ground	0.00	Range 5-15cm: 100.00%	Rock	Processed from nearest available five base stations - St Asaph, Holyhead, Aberdaron, Machynlleth and Shrewsbury
51				05/10/2024	12.32pm	16	300 (5 min)	Yr Wyddfa		Nroth Wales A	A1		Pt. 906.2m	N/A	115	17	SH 61989 55154	Bwlch	896	901.444	Trimble converted to OSGM15	896.128	SH 61885 55154				N/R	0.025	Trimble on rucksack	0.30	Range 5-15cm: 100.00%	Grass	Processed from nearest available five base stations - St Asaph, Holyhead, Aberdaron, Machynlleth and Shrewsbury
52				05/10/2024	12.09pm	20	300 (5 min)	Yr Wyddfa		Nroth Wales A	A1		Pt. 901.8m	N/A	115	17	SH 62253 55134	Summit	c 900 (DataMapWales)	905.569	Trimble converted to OSGM15	901.791	SH 62258 55130	9.3	1.03%		0.00	0.030	Trimble on ground	0.00	Range 5-15cm: 100.00%	Rock	Processed from nearest available five base stations - St Asaph, Holyhead, Aberdaron, Machynlleth and Shrewsbury
53				05/10/2024	11.52am	11	300 (5 min)	Yr Wyddfa		Nroth Wales A	A1		Pt. 901.8m	N/A	115	17	SH 62258 55134	Bwlch	890m - 895m (DataMapWales)	887.986	Trimble converted to OSGM15	892.528	SH 62270 55129 (SH 62268 55133 LIDAR position prioritised)				N/R	0.16	Trimble on rucksack	0.30	Range 0.5-1m: 49.35%	Rock	Processed from nearest available five base stations - St Asaph, Holyhead, Aberdaron, Machynlleth and Shrewsbury
54				05/10/2024	10.45am	19	300 (5 min)	Yr Wyddfa		Nroth Wales A	A1		Pt. 914.6m	N/A	115	17	SH 62318 55161	Summit	914	921.488	Trimble converted to OSGM15	914.638	SH 62309 55153	10.6	1.16%	Welsh Highland Sub	0.00	0.026	Trimble on ground	0.00	Range 5-15cm: 100.00%	Rock	Processed from nearest available five base stations - St Asaph, Holyhead, Aberdaron, Machynlleth and Shrewsbury
55				05/10/2024	10.25am	17	300 (5 min)	Yr Wyddfa		Nroth Wales A	A1		Pt. 914.6m	N/A	115	17	SH 62337 55152	Bwlch	900m - 910m	910.022	Trimble converted to OSGM15	904.056	SH 62336 5149				N/R	0.025	Trimble on rucksack	0.23	Range 5-15cm: 100.00%	Rock	Processed from nearest available five base stations - St Asaph, Holyhead, Aberdaron, Machynlleth and Shrewsbury
56	1066	958	775	05/10/2024	10.04am	19	240 (4 min)	Yr Wyddfa		Nroth Wales A	A1	1976	Crib Goch	N/A	115	17	SH 62424 55187	Summit 1C	923	928.997	Trimble converted to OSGM15	924.084 (923.991m average of three prioritised)	SH 62418 55182	66.8	7.23%	Welsh Highland P15, Simm, Hewitt, Nuttall	0.00	0.043	Trimble on ground	0.00	Range 5-15cm: 100.00%	Rock	Processed from nearest available five base stations - St Asaph, Holyhead, Aberdaron, Machynlleth and Shrewsbury
57	1066	958	775	05/10/2024	9.55am	17	120 (2 min)	Yr Wyddfa		Nroth Wales A	A1	1976	Crib Goch	N/A	115	17	SH 62424 55187	Summit 1B	923	929.649	Trimble converted to OSGM15	923.966 (923.991m average of three prioritised)	SH 62418 55182	66.8	7.23%	Welsh Highland P15, Simm, Hewitt, Nuttall	0.00	0.020	Trimble on ground	0.00	Range 5-15cm: 100.00%	Rock	Processed from nearest available five base stations - St Asaph, Holyhead, Aberdaron, Machynlleth and Shrewsbury
58	1066	958	775	05/10/2024	9.45am	16	300 (5 min)	Yr Wyddfa		Nroth Wales A	A1	1976	Crib Goch	N/A	115	17	SH 62424 55187	Summit 1A	923	929.615	Trimble converted to OSGM15	923.922 (923.991m average of three prioritised)	SH 62418 55182	66.8	7.23%	Welsh Highland P15, Simm, Hewitt, Nuttall	0.00	0.042	Trimble on ground	0.00	Range 5-15cm: 100.00%	Rock	Processed from nearest available five base stations - St Asaph, Holyhead, Aberdaron, Machynlleth and Shrewsbury
59				26/08/2024	1.07pm	18	300 (5 min)	Esgeiriau Gwynion		Nroth Wales A	A3		Pt. 503.5m	N/A	125	23, 239	SH 96017 19935	Summit	c 500	505.428	Trimble converted to OSGM15	503.515	SH 95985 19925	9.1	1.80%		0.30	0.033	Trimble on rucksack	0.41	Range 5-15cm: 93.35%	Heather	Processed from nearest available five base stations - Machynlleth, St Asaph, Shrewsbury, Shobdon and Aberdaron
60				26/08/2024	1.35pm	19	300 (5 min)	Esgeiriau Gwynion		Nroth Wales A	A3		Pt. 503.5m	N/A	125	23, 239	SH 95872 19924	Bwlch	495	496.030	Trimble converted to OSGM15	494.444	SH 95867 19927				0.20	0.46	Trimble on rucksack	0.46	Range 30-50cm: 46.50%	Bog	Processed from nearest available five base stations - Machynlleth, St Asaph, Shrewsbury, Shobdon and Aberdaron
61				26/08/2024	10.58am	20	300 (5 min)	Esgeiriau Gwynion		Nroth Wales A	A3		Mynydd St Ioan	Mynydd St John or Cefn Tre-ysbyty	125	23, 239	SH 97916 20257	Summit	c 490	500.165	Trimble converted to OSGM15	499.615	SH 97938 20254	10.5	2.10%		0.30	0.045	Trimble on rucksack	0.30	Range 30-50cm: 100.00%	Moor grass/heather	Processed from nearest available five base stations - Machynlleth, St Asaph, Shrewsbury, Shobdon and Aberdaron
62				26/08/2024	11.22am	19	300 (5 min)	Esgeiriau Gwynion		Nroth Wales A	A3		Mynydd St Ioan	Mynydd St John or Cefn Tre-ysbyty	125	23, 239	SH 97766 20259	Bwlch	480m - 490m	490.636	Trimble converted to OSGM15	489.122	SH 97773 20223				0.30	0.063	Trimble on rucksack	0.57	Range 5-15cm: 100.00%	Bog	Processed from nearest available five base stations - Machynlleth, St Asaph, Shrewsbury, Shobdon and Aberdaron
63				17/08/2024	10.28am	18	120 (2 min)	Glyder Fawr		Nroth Wales A	A1		Elidir Fach	N/A	115	17	SH 60377 61359	Summit 1	795	794.759	Trimble converted to OSGM15	794.119	SH 60374 61341				0	0.043	Trimble on ground	0	Range 5-15cm: 100.00%	Rock sticking out north of cairn	Processed from nearest available five base stations - Holyhead, St Asaph, Aberdaron, Machynlleth and Daresbury
64				17/08/2024	10.38am	19	120 (2 min)	Glyder Fawr		Nroth Wales A	A1		Elidir Fach	N/A	115	17	SH 60377 61359	Summit 2	795	794.940	Trimble converted to OSGM15	794.055	SH 60382 61337				0	0.029	Trimble on ground	0	Range 5-15cm: 100.00%	Big boulder south of cairn	Processed from nearest available five base stations - Holyhead, St Asaph, Aberdaron, Machynlleth and Daresbury
65				17/08/2024	10.51am	16	180 ( 3 min)	Glyder Fawr		Nroth Wales A	A1		Elidir Fach	N/A	115	17	SH 60377 61359	Summit 3	795	794.738	Trimble converted to OSGM15	794.195	SH 60377 61341	10.0	1.26%	Welsh Highland Sub	N/R	0.018	Trimble placed 0.18m above rock	0.20	Range 5-15cm: 100.00%	Large boulder	Processed from nearest available five base stations - Holyhead, St Asaph, Aberdaron, Machynlleth and Daresbury
66				17/08/2024	11.32am	20	180 ( 3 min)	Glyder Fawr		Nroth Wales A	A1		Elidir Fach	N/A	115	17	SH 60550 61289	Bwlch 1	780m - 790m	787.476	Trimble converted to OSGM15	784.162 (V-V)	SH 60556 61279				N/R	0.022	Trimble on rucksack	0.31	Range 5-15cm: 100.00%	Grass	Processed from nearest available five base stations - Holyhead, St Asaph, Aberdaron, Machynlleth and Daresbury
67				17/08/2024	11.49am	19	300 (5 min)	Glyder Fawr		Nroth Wales A	A1		Elidir Fach	N/A	115	17	SH 60550 61289	Bwlch 2	780m - 790m	785.290	Trimble converted to OSGM15	784.155 (V-V)	SH 60540 61263				N/R	0.031	Trimble on rucksack	0.34	Range 5-15cm: 100.00%	Grass	Processed from nearest available five base stations - Holyhead, St Asaph, Aberdaron, Machynlleth and Daresbury
68				14/08/2024	6.59pm	18	600 (10 min)	Glyder Fawr		Nroth Wales A	A1		Pt. 914.9m	N/A	115	17	SH 65986 58573	Summit	c 900	917.154	Trimble converted to OSGM15	914.859	SH 65981 58563	10.5	1.15%	Welsh Highland Sub	0	0.026	Trimble on ground	0	Range 30-50cm: 100.00%	Rock	Processed from nearest available five base stations - St Asaph, Holyhead, Machynlleth, Aberdaron and Daresbury
69				14/08/2024	7.25pm	10	480 (8 min)	Glyder Fawr		Nroth Wales A	A1		Pt. 914.9m	N/A	115	17	SH 65987 58566	Bwlch	c 900	905.713	Trimble converted to OSGM15	904.369	SH 65982 58556				N/R	0.05	Trimble on rock above bwlch	0.6	Range 5-15cm: 98.88%	Rock	Processed from nearest available five base stations - St Asaph, Holyhead, Machynlleth, Aberdaron and Daresbury
70				11/08/2024	3.17pm	16	600 (10 min)	Glyder Fawr		Nroth Wales A	A1		Craig Cwrwgl	N/A	115	17	SH 61551 61601	Summit	c 760m	764.294	Trimble converted to OSGM15	761.229	SH 61544 61586	14.5	1.90%	Welsh Highland Sub	0.00	0.059	Trimble on ground	0.00	Range 5-15cm: 100.00%	Rock	Processed from nearest available five base stations - St Asaph, Holyhead, Aberdaron, Machynlleth and Daresbury
71				11/08/2024	4.07pm	11	300 (5 min)	Glyder Fawr		Nroth Wales A	A1		Craig Cwrwgl	N/A	115	17	SH 61549 61595	Bwlch	c 760m	741.302	Trimble converted to OSGM15	746.743	SH 61546 61584				N/R	0.49	Trimble on edge of boulder above natural bwlch	4.05	Range 30-50cm: 69.60%	Relatively narrow and exposed cleft between hillside and pillar	Processed from nearest available five base stations - St Asaph, Holyhead, Aberdaron, Machynlleth and Daresbury
72				28/07/2024	9.41am	15	300 (5 min)	Arenig Fawr		Nroth Wales A	A2		Pen Tyrau	N/A	124, 125	18	SH 83746 38249	Summit 1	697	701.394	Trimble converted to OSGM15	696.768	SH 83744 38244				N/R	0.04	Trimble on rucksack	0.38	Range 5-15cm: 92.55%	Rock	Processed from nearest available five base stations - Machynlleth, St Asaph, Aberdaron, Shrewsbury and Holyhead
73				28/07/2024	9.56am	19	300 (5 min)	Arenig Fawr		Nroth Wales A	A2		Pen Tyrau	N/A	124, 125	18	SH 83746 38249	Summit 2	697	700.932	Trimble converted to OSGM15	697.429	SH 83737 38250	10.0	1.44%	Welsh Highland Sub	N/R	0.081	Trimble on ground	0	Range 30-50cm: 99.78%	Rock	Processed from nearest available five base stations - Machynlleth, St Asaph, Aberdaron, Shrewsbury and Holyhead
74				28/07/2024	10.17am	17	300 (5 min)	Arenig Fawr		Nroth Wales A	A2		Pen Tyrau	N/A	124, 125	18	SH 83606 38166	Bwlch	680m - 690m	690.692	Trimble converted to OSGM15	687.418	SH 83601 38142				N/R	0.028	Trimble on rucksack	0.38	Range 5-15cm: 86.68%	Peat	Processed from nearest available five base stations - Machynlleth, St Asaph, Aberdaron, Shrewsbury and Holyhead
75	1065	957	774	27/01/2024	1.35pm	14	300 (5 min)	Moel y Gamelin		Nroth Wales A	A2	7523	Caer Drewyn	N/A	125	255, 256	SJ 09128 44418	Summit	314	308.691	Trimble converted to OSGM15	313.508 (313.456m Leica GS15 by JB & GJ)	SJ 09127 44416 (SJ 09127 44416 Leica GS15 by JB & GJ)	90.8 (90.8m Lrica GS125 by JB & GJ)	28.97% (28.96% Leica GS15 by JB & GJ)	Subhump, Trichant	0.02	0.033	Trimble on rucksack	0.34	Range 5-15cm: 100.00%	Small mound	Processed from nearest available five base stations - St Asaph, Shrewsbury, Machynlleth, Daresbury and Crewe
76	1064	956		25/11/2023	10.27am	20	840 (14 min)	Drygarn Fawr		South Wales B	B1	7631	Esgair Garthen	N/A	147	187, 200	SN 82516 64279	Summit	507	505.595	Trimble converted to OSGM15	508.073	SN 82531 64276	22.7	4.47%	Pellennig, Welsh Highland P15, Subdodd	0.1	0.055	Trimble on rucksack	0.38	Range 5-15cm: 82.56%	Moor grass 2 metres from quad bike track	Processed from nearest available five base stations - Machynlleth, Brecon, Shobdon, Aberporth and Swansea
77	1063	955		11/11/2023	11.09am	18	360 (6 min)	Carn yr Hyrddod		South Wales B	B1	7630	Esgair Hengae	N/A	135, 136, 147	200	SN 81524 68628	Summit	510	507.634	Trimble converted to OSGM15	509.752	SN 81511 68622	21.5	4.22%	Welsh Highland P15, Subdodd	0.1	0.035	Trimble on rucksack	0.4	Range 5-15cm: 100.00%	Grass	Processed from nearest available five base stations - Machynlleth, Brecon, Shobdon, Aberporth and Swansea
78	1062	954	773	16/09/2023	9.29am	19	360 (6 min)	Drygarn Fawr		South Wales B	B1	3507	Mynydd Trawsnant	N/A	147	187	SN 82136 48415	Summit	517	519.825	Trimble converted to OSGM15	516.256m (516.559m LIDAR height prioritised)	SN 82452 48559 (SN 82452 48564 LIDAR position prioritised)	138.3	26.77%	Hump,Welsh Highland P15,500m Twmpau,Dewey,Dodd	0.2	0.026	Trimble on rucksack	0.43	Range 5-15cm: 100.00%	Felled forestry	Processed from nearest available five base stations - Brecon, Machynlleth, Aberporth, Shobdon and Swansea
79				06/09/2023	10.48am	20	300 (5 min)	Carnedd Wen		Nroth Wales A	A3	15430	Castell Dolforwyn	Dolforwyn Castle	136	215	SO 15182 95018	Summit 2	231 (Geo)	230.579	Trimble converted to OSGM15	228.475	SO 15205 95033				0.02	0.028	Trimble on rucksack	0.38	Range 5-15cm: 100.00%	Grass	Processed from nearest available five base stations - Machynlleth, Shrewsbury, Shobdon, Brecon and Droitwich
80	1061	953	772	06/09/2023	10.37am	16	180 (3 min)	Carnedd Wen		Nroth Wales A	A3	15430	Castell Dolforwyn	Dolforwyn Castle	136	215	SO 15182 95018	Summit 1	231 (Geo)	226.574	Trimble converted to OSGM15	228.523	SO 15189 95016	40.4	17.68%	200m Twmpau	0.01	0.069	Trimble on rucksack	0.37	Range 5-15cm: 99.34%	Grass 1metre from stone wall	Processed from nearest available five base stations - Machynlleth, Shrewsbury, Shobdon, Brecon and Droitwich
81	1060	952		02/09/2023	10.54am	16	300 (5 min)	Cefn yr Ystrad		South Wales B	B5		Clo Cadno	N/A	161	13	SO 11849 16241	Summit	c 520m (c 530m OS Maps)	532.432	Trimble converted to OSGM15	529.590 (530.289m LIDAR height prioritised)	SO 11851 16246 (SO 11849 16247 LIDAR position prioritised)	16.7	3.15%	Welsh Highland P15	0.075	0.044	Trimble on rucksack	0.42	Range 30-50cm: 99.02%	Heather	Processed from nearest available five base stations - Brecon, Cardiff, Shobdon, Swansea and Stroud
82				10/08/2023	12.11pm	10	300 (5 min)	Gwaun Ceste		South Wales B	B3	2184	Gwaun Ceste		148	200	SO 15819 55547	Summit 1C	542	543.136	Trimble converted to OSGM15	542.034	SO 15820 55548				0.05	0.023	Trimble on rucksack	0.36	Range 5-15cm: 100.00%	Grass 1 metre from trig	Processed from nearest available five base stations - Shobdon, Brecon, Machynlleth, Shrewsbury and Droitwich
83				10/08/2023	12.01pm	10	300 (5 min)	Gwaun Ceste		South Wales B	B3	2184	Gwaun Ceste	Gwaunceste Hill	148	200	SO 15819 55547	Summit 1B	542	542.935	Trimble converted to OSGM15	542.109	SO 15821 55547	165.2	30.47%	Marilyn, Hump, Dodd, Welsh Highland P15, Dewey	0.05	0.075	Trimble on rucksack	0.40	Range 30-50cm: 92.35%	Grass 1 metre from trig	Processed from nearest available five base stations - Shobdon, Brecon, Machynlleth, Shrewsbury and Droitwich
84				10/08/2023	11.42am	8	300 (5 min)	Gwaun Ceste		South Wales B	B3	2184	Gwaun Ceste		148	200	SO 15819 55547	Summit 2B	542	542.704	Trimble converted to OSGM15	541.882	SO 15876 55374				0.20	0.048	Trimble on rucksack	0.45	Range 5-15cm: 100.00%	Heather	Processed from nearest available five base stations - Shobdon, Brecon, Machynlleth, Shrewsbury and Droitwich
85				10/08/2023	11.21am	7	300 (5 min)	Gwaun Ceste		South Wales B	B3	2184	Gwaun Ceste		148	200	SO 15819 55547	Summit 2A	542	542.802	Trimble converted to OSGM15	541.817	SO 15877 55374				0.20	0.045	Trimble on rucksack	0.47	Range 5-15cm: 100.00%	Heather	Processed from nearest available five base stations - Shobdon, Brecon, Machynlleth, Shrewsbury and Droitwich
86	305	277	219	09/07/2015	3.36pm	10	540 (9 min)	Fforest Glud	Gwaun Ceste	31B		2184	Gwaun Ceste		148	200	SO 15819 55547	Summit 1A	542	N/R	541.974	542.002	SO 15821 55547				0.08	0	Trimble on ground	0	Range 5-15cm: 100.00%	Grass 1 metre from trig	Processed from nearest available five base stations - Brecon, Machynlleth, Shrewsbury, Droitwich and Cardiff
87	304	276	218	09/07/2015	1.49pm	8	300 (5 min)	Fforest Glud	Gwaun Ceste	31B		14893	Little Hill	N/A	148	200	SO 17269 53775	Summit 2	469	N/R	469.16	469.188	SO 17175 53749	46.5	9.91%	Pedwar	0.2	0	Trimble on ground	0	Range 5-15cm: 100.00%	Bilberry	Processed from nearest available five base stations - Brecon, Machynlleth, Shrewsbury, Droitwich and Cardiff
88				09/07/2015	1.30pm	9	300 (5 min)	Fforest Glud	Gwaun Ceste	31B		14893	Little Hill		148	200	SO 17269 53775	Summit 1	469	N/R	468.928	468.956	SO 17268 53774				0.15	0	Trimble on ground	0	Range 5-15cm: 100.00%	Grass and bilberry	Processed from nearest available five base stations - Brecon, Machynlleth, Shrewsbury, Droitwich and Cardiff
89				10/08/2023	10.22am	15	300 (5 min)	Gwaun Ceste		South Wales B	B3	14893	Little Hill		148	200	SO 16395 54416	Bwlch 2	423 (Geo)	423.919	Trimble converted to OSGM15	422.675	SO 16357 54404				0.15	0.039	Trimble on rucksack	0.44	Range 5-15cm: 99.78%	Heather	Processed from nearest available five base stations - Shobdon, Brecon, Machynlleth, Shrewsbury and Droitwich
90				09/07/2015	2.22pm	9	420 (7 min)	Fforest Glud	Gwaun Ceste	31B		14893	Little Hill		148	200	SO 16395 54416	Bwlch 1	423 (Geo)	N/R	422.725	422.753	SO 16388 54416				0.5	0	Trimble on ground	0	Range 5-15cm: 100.00%	Grass beside reeds	Processed from nearest available five base stations - Brecon, Machynlleth, Shrewsbury, Droitwich and Cardiff
91	1059	951	771	01/07/2023	9.33am	9	300 (5 min)	Drygarn Fawr		South Wales B	B1	3513	Pt. 506.0m	N/A	147	187, 200	SN 81758 55418	Summit	505	506.253	Trimble converted to OSGM15	506.010	SN 81733 55429	43.3	8.56%	Welsh Highland P15, 500m Twmpau, Dewey, Dodd	0.15	0.029	Trimble on rucksack	0.65	Range 5-15cm: 99.42%	Felled forestry	Processed from nearest available five base stations - Brecon, Machynlleth, Aberporth, Shobdon and Swansea
92	593	539	438	06/06/2023	6.37pm	18	120 (2 min)	Cefn yr Ystrad		South Wales B	B5		Twyn y Waun	Twn y Waun	160	12, 166	SO 08440 07352	Summit (natural)	c 450 (Geo)	455.006	Trimble converted to OSGM15	450.644	SO 08442 07378	70.7 (Trimble summit and LIDAR bwlch)	15.68% (Trimble summit and LIDAR bwlch)	Dual Summit Pedwar	0.15	0.019	Trimble on rucksack	0.43	Range 5-15cm: 100.00%	Grass	Processed from nearest available five base stations - Brecon, Cardiff, Swansea, Shobdon and Stroud
93	593	539	438	01/12/2017	11.37am	9	300 (5 min)	Y Cymoedd - dwyreiniol	Twyn y Waun	South Wales C	C2	15615	Twyn y Waun	Twn y Waun	160	12, 166	SO 08436 07351	Summit 3	c 450 (Geo)	N/R	Trimble converted to OSGM15	475.958	SO 08209 07041	96.0 (Trimble summit and LIDAR bwlch)	20.16% (Trimble summit and LIDAR bwlch)	Dual Summit Pedwar	0.6	0	Trimble on small rock	0.02	Range 5-15cm: 100.00%	Solid waste spoil	Processed from nearest available five base stations - Brecon, Cardiff, Swansea, Shobdon and Stroud
94				01/12/2017	9.37am	11	300 (5 min)	Y Cymoedd - dwyreiniol	Twyn y Waun	South Wales C	C2	15615	Twyn y Waun		160	12, 166	SO 08436 07351	Summit 2	c 450 (Geo)	N/R	Trimble converted to OSGM15	475.817	SO 08213 07016				0.6	0	Trimble on ground	0	Range 5-15cm: 100.00%	Small embedded rock amongst solid waste spoil	Processed from nearest available five base stations - Brecon, Cardiff, Swansea, Shobdon and Stroud
95				01/12/2017	9.10am	11	360 (6 min)	Y Cymoedd - dwyreiniol	Twyn y Waun	South Wales C	C2	15615	Twyn y Waun		160	12, 166	SO 08436 07351	Summit 1	c 450 (Geo)	N/R	Trimble converted to OSGM15	475.714	SO 08357 07132				0.6	0	Trimble on ground	0	Range 5-15cm: 100.00%	Small embedded rock amongst solid waste spoil	Processed from nearest available five base stations - Brecon, Cardiff, Swansea, Shobdon and Stroud
96	1058	950	770	06/06/2023	5.07pm	20	180 (3 min)	Cefn yr Ystrad		South Wales B	B5	7662	Cefn y Brithdir	N/A	171	166	SO 12062 04330	Summit 3	446	445.953	Trimble converted to OSGM15	444.774	SO 12037 04322	86.5	19.46%	Pedwar	0.08	0.018	Trimble on rucksack	0.42	Range 5-15cm: 100.00%	Grass	Processed from nearest available five base stations - Cardiff, Brecon, Swansea, Shobdon and Stroud
97				06/06/2023	4.57pm	18	180 (3 min)	Cefn yr Ystrad		South Wales B	B5	7662	Cefn y Brithdir	N/A	171	166	SO 12062 04330	Summit 2	446	444.192	Trimble converted to OSGM15	444.691	SO 11974 04410				0.1	0.018	Trimble on rucksack	0.41	Range 5-15cm: 100.00%	Grass	Processed from nearest available five base stations - Cardiff, Brecon, Swansea, Shobdon and Stroud
98				06/06/2023	4.49pm	17	180 (3 min)	Cefn yr Ystrad		South Wales B	B5	7662	Cefn y Brithdir	N/A	171	166	SO 12062 04330	Summit 1	446	444.243	Trimble converted to OSGM15	444.673	SO 11979 04396				0.02	0.053	Trimble on rucksack	0.41	Range 5-15cm: 100.00%	Grass under telegraph poles	Processed from nearest available five base stations - Cardiff, Brecon, Swansea, Shobdon and Stroud
99	1057	949	769	06/06/2023	3.39pm	15	300 (5 min)	Cefn yr Ystrad		South Wales B	B5	15610	Mynydd Rhymni	Rhymney Hill/Rhymni Hill	161	13, 166	SO 12572 08955	Summit	457	457.693	Trimble converted to OSGM15	457.4	SO 12593 08981	78.1	17.08%	Pedwar	0.01	0.019	Trimble on rucksack	0.33	Range 5-15cm: 100.00%	Grass 1 metre from base of cairn	Processed from nearest available five base stations - Brecon, Cardiff, Swansea, Shobdon and Stroud
100	1056	948	768	06/06/2023	2.06pm	17	300 (5 min)	Cefn yr Ystrad		South Wales B	B5	5271	Twyn yr Hyddod	Mynydd Bedwellte	161	13, 166	SO 14514 06011	Summit	486	485.661	Trimble converted to OSGM15	485.6	SO 14515 06012	116.2	23.93%	Hump, Pedwar	0.02	0.052	Trimble on rucksack	0.25	Range 5-15cm: 100.00%	Grass 1 metre from base of trig pillar	Processed from nearest available five base stations - Brecon, Cardiff, Swansea, Shobdon and Stroud