P30 Hill Reclassification Spreadsheet
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© 2013 - 2016 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 blog author.
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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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P30 Hill Reclassification Spreadsheet
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DateName
1:50,000 Map
Grid ReferenceSurveyed Height Summit (m)Surveyed Height Bwlch (m)Surveyed Drop (m)Previously Listed DropNotes
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03/10/2017Mynydd yr Heol148SO 107 601386.8355.631.227Reclassified from Sub-Trichant to Trichant due to a Trimble GeoXH 6000 survey.
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19/09/2017Waun Sidan137, 148SO 250 726407.7376.331.429Reclassified from a 400m Sub-Pedwar to a Pedwar based on analysis of LIDAR data by Aled Williams.
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11/06/2017Fuches135, 136SN 866 836446.7419.227.5c 76Reclassified from a Pedwar to a 400m Sub-Pedwar based on analysis of LIDAR data by Aled Williams.
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07/06/2017Commins125SJ 174 282376.1341.434.7c 31Confirmation via survey with the Trimble GeoXH 6000 of reclassification from Sub List due to contour interpolation.
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*06/06/2017
Bryn Crugog136SN 941 923446.739452.7c 20Reclassified from a 400m Sub-Pedwar to a Pedwar based on analysis of LIDAR data by Aled Williams.
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**05/06/2017
Esgair Hir136SN 937 925446.5423.722.8c 51Reclassified from a Pedwar to a 400m Sub-Pedwar based on analysis of LIDAR data by Aled Williams.
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*24/05/2017
Allt y Genlli136SN 985 950398.9325.773.227Reclassified from a 390m Double Sub-Pedwar to a 390m Sub-Pedwar and a Sub-Trichant to a Trichant based on analysis of LIDAR data by Aled Williams.
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**14/05/2017
Fainc Fawr135SN 741 893466.2437.928.332Reclassified from a Pedwar to a 400m Sub-Pedwar based on analysis of LIDAR data by Aled Williams.
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**12/05/2017
Fynach Fawr135SN 727 890461.4432.528.9c 32Reclassified from a Pedwar to a 400m Sub-Pedwar based on analysis of LIDAR data by Aled Williams.
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**06/05/2017
Moelfryn115SH 569 511275246.129c 30Reclassified from a 200m Twmpau to a 200m Sub-Twmpau based on analysis of LIDAR data by Aled Williams (for bwlch) and detail from the Ordnance Survey Six-Inch map (for summit).
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*05/05/2017
Penmaen Mawr115SH 702 756385.8354.531.329.8Reclassified from a Sub-Tricahnt to a Trichant based on analysis of LIDAR data by Aled Williams.
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**25/04/2017
Reilth Top137SO 284 881404.6375.329.3c 30Reclassified from a Four to a 400m Sub-Four based on a survey with the Trimble GeoXH 6000 and LIDAR data, with the latter used for the height of the col and analysed by Aled Williams.
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**13/04/2017
Fan y Big160SO 036 206716.3688.128.230Reclassified from a 700m Twmpau to a 700m Sub-Twmpau based on analysis of LIDAR data by Aled Williams.
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**09/04/2017
Garreg Ddu115SH 701 462348319.628.4c 30Reclassified from a Trichant to a Sub-Trichant based on analysis of LIDAR data by Aled Williams.
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**29/03/2017
Mynydd y Drum160SN 807 097296.2271.424.8c 53Reclassified from a 200m Twmpau to a 200m Sub-Twmpau based on analysis of LIDAR data by Aled Williams, and subsequently surveyed with the Trimble GeoXH 6000.
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*28/03/2017
MRF Tip160SN 828 114311.8277.634.2N/AAddition to the Y Trichant ranks based on analysis of LIDAR data by Aled Williams.
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*27/03/2017
Teisen Priodas160SN 820 108337.9244.693.3N/AAddition to the Y Trichant ranks based on analysis of LIDAR data by Aled Williams, and subsequently surveyed with the Trimble GeoXH 6000.
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*24/03/2017
Cwmcynydd Bank136, 147SO 053 724451.4370.980.5c 27Reclassified from 400m Sub-Pedwar to Pedwar based on analysis of LIDAR data by Aled Williams.
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**17/03/2017
Carreg y Gwynt136, 147SN 956 776426.7398.628.132Reclassified from Pedwar to 400m Sub-Pedwar based on analysis of LIDAR data by Aled Williams.
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**11/03/2017
Esgair Wen
135, 136, 147
SN 807 664494.6464.729.931Reclassified from Pedwar to 400m Sub-Pedwar based on analysis of LIDAR data by Aled Williams.
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**19/01/2017
Mynydd Llangatwg161SO 202 145528.4499.628.8c 31Reclassified from 500m Twmpau to 500m Sub-Twmpau due to LIDAR data analysed by Aled Williams.
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* 30/12/2016
Lan160SO 052 391413.6377.935.7c 29Reclassified from 400m Sub-Pedwar to Pedwar based on analysis of LIDAR data by Aled Williams.
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** 20/12/2016
Twyn Disgwylfa170SS 995 959428.1399.328.830Reclassified from Pedwar to 400m Sub-Pedwar based on analysis of LIDAR data by Aled Williams.
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* 18/12/2016
Pt. 415.6m171SO 243 011415.6384.231.4c 28Reclassified from 400m Sub-Pedwar to Pedwar based on analysis of LIDAR data by Aled Williams.
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* 16/12/2016
Y Ceiliog Mawr115SH 594 598220.3182.837.5N/AIncluded through analysis of LIDAR data by Aled Williams.
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* 03/11/2016
Coed y Garth124SH 661 165875631c 2887m summit spot height taken from the Harvey Maps 1:25,000 Superwalker map and the 56m bwlch spot height taken from the Ordnance Survey enlarged mapping hosted on the Geograph website.
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15/05/2016Foel Fawr157SM 705 22571.941.930.1c 29Reclassified from Sub-Twmpau to Twmpau after survey with the Trimble GeoXH 6000
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** 14/05/2016
Ynys Fach157SM 822 32730.81.229.6c 30Reclassified from Twmpau to Sub-Twmpau after survey with the Trimble GeoXH 6000
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04/05/2016Moel y Gôd125SJ 072 168307.6270.637c 35Promoted from Sub-List
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** 08/04/2016
Pt. 408m136, 148SO 180 692407.7379.428.330Reclassified from Pedwar to Sub-Pedwar
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* 05/04/2016
Pandy Bank117SJ 336 538105.3mc 71c 34N/AIncluded in 100m Tumpau list due to survey with Trimble GeoXH 6000 which confirms details on OS enlarged Geograph map, previously unclassified
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** 14/03/2016
Craig y Garreg-lwyd124SH 730 427473.4443.529.935Reclassified from Pedwar to Sub-Pedwar
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** 12/03/2016
Drysgol136, 147SN 946 744483.5454.329.2c 31Reclassified from Pedwar to Sub-Pedwar
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* 23/02/2016
Pentre Clawdd Gorse
117SJ 311 442141.9111.630.329.5Included in 100m Tumpau list due to survey with Trimble GeoXH 6000, summit previously listed as Wynnstay Park (SJ 309 429)
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23/02/2016Pt. 258m116SH 811 542257.8227.530.1c 29.6Re-instated as 200m Twmpau after bwlch survey
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** 23/02/2016
Moel y Gadair124SH 521 39166.638.128.5c 30Reclassified from 30m-99m Twmpau to 30m-99m Sub-Twmpau
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11/02/2016Pt. c 71m123SH 310 297c 7141c 30c 25Promoted from Sub-List due to 41m bwlch spot height on the OS enlarged Geograph map and contour interpolation for summit height
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11/02/2016Pt. 66m123SH 299 270663234c 31Promoted from Sub-List with positional change for summit
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11/02/2016Pt. 68m123SH 304 399683731c 30Promoted from Sub-List
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** 20/01/2016
Bwlch Clump125SJ 170 108263.9234.829.1c 30Previously listed as a twin P30 with Pt. 263m positioned at SJ 173 109, based on each having a 262m summit spot height. Pt. 263m was surveyed as being 262.8m high with a 19.4m drop.
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17/12/2015Bodlondeb Wood115SH 779 781c 57c 23c 34N/ANot included in original P30 list
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03/12/2015Pt. 99m114SH 385 89499c 68c 31N/ANot included in original P30 list
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* 13/10/2015
Bersham Bank117SJ 311 481153.6c 103c 51N/AIncluded in 100m Tumpau list due to survey with Trimble GeoXH 6000, previously unclassified
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07/09/2015
Banc Bronderwgoed
135, 136SN 871 987404.1376.427.730Reclassified from Pedwar to Sub-Pedwar
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** 12/08/2015
Bryn Serth161SO 147 109403.9378.625.4c 34Reclassified from Pedwar to Sub-Pedwar
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15/06/2015Castell Cricieth123SH 500 37749.61619.3330.3N/AP30 status discovered by Alex Cameron, confirmation by Trimble GeoXH 6000 survey.
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15/06/2015Carreg yr Eryr124SH 526 37853.27522.33230.9c 30Originally in Hills to Survey Sub-List, later promoted to P30 list when drop values added, promotion confirmed by Trimble survey
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** 21/05/2015
Wenallt147SN 933 571466.39438.11628.330Reclassified from Pedwar to Sub-Pedwar
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** 16/05/2015
Pt. 422m136SO 073 822422.248393.2152931Reclassified from Pedwar to Sub-Pedwar
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24/12/2014Mynydd Poeth116SH 953 513419.272387.5431.7c 29Promoted from Sub-Pedwar to Pedwar
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17/11/2014Pt. 245m160SN 721 0592452143131Promoted from Sub-List due to 214m bwlch spot height on the OS enlarged Geograph map
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10/11/2014Pt. 232m162SO 518 106232c 202c 30c 30Promoted from Sub-List
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10/11/2014Pt. 277m171ST 485 990277c 247c 30c 30Promoted from Sub-List
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05/11/2014The Cold Piece137SO 338 996399.499341.96857.5c 58Reclassified from a c 400m Four to a 399.5m Sub-Four due to a Trimble survey
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03/11/2014Cefn Cantref160SO 048 26929326330c 30Promoted from Sub-List due to 263m bwlch spot height on the OS enlarged Geograph map
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20/10/2014Pt. 238m159SN 672 232238c 203c 35c 34Promoted from Sub-List
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20/10/2014Pen y Lan159SN 663 206268c 235c 33c 34Promoted from Sub-List
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06/10/2014Mynydd Cerrig159SN 500 136c 208c 177c 31c 30Promoted from Sub-List
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29/09/2014Pt. 204m158SN 171 12020417331c 30Promoted from Sub-List due to 204m summit spot height on the OS enlarged Geograph map
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* 21/09/2014
Pt. 499m124SH 665 310499.508469.15930.349c 27Promoted from Sub-Pedwar to Pedwar
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15/09/2014Blaen Wern Wood146SN 564 484c 226c 194c 32c 28Summit relocation and promoted from Sub-List due to 5m contour intervals on the OS enlarged Geograph map
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01/09/2014Pt. 208m146, 160SN 735 366208c 175c 33c 33Promoted from Sub-List
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01/09/2014Allt Mes146, 160SN 795 397217c 184c 33c 33Promoted from Sub-List
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01/09/2014Pt. 245m147SN 917 501245c 212c 33c 33Promoted from Sub-List
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01/09/2014Comin y Garth147SN 982 54824821830c 32Promoted from Sub-List due to 218m bwlch spot height on the OS enlarged Geograph map
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01/09/2014Pt. 282m147, 160SN 802 42428225131c 29Promoted from Sub-List due to 282m summit and 251m bwlch spot height on the OS enlarged Geograph map
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01/09/2014Pt. c 285m147SN 972 529c 285252c 33c 27Promoted from Sub-List due to 252m bwlch spot height on the OS enlarged Geograph map
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01/09/2014Pen Llys147SN 998 58429226230c 30Promoted from Sub-List due to 262m bwlch spot height on the OS enlarged Geograph map
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01/09/2014Comins Pen-y-banc135SN 675 691299c 207c 28c 92Summit positional change resulting in dramatic increase in drop value as a Sub-listed hill alters to a P30 hill
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25/08/2014Pt. 243m161SO 126 32024321330c 29Promoted from Sub-List due to 213m bwlch spot height on the OS enlarged Geograph map
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24/08/2014Castell Dinbych116SJ 051 657143.221110.21233c 30Confirmation of P30 status from Trimble survey
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18/08/2014Yatt Wood148SO 246 584c 255c 243c 12c 34Deleted from the Welsh 200m P30 list as c 277m summit has been quarried away
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* 26/07/2014
Pt. 238m146, 160SN 795 343238c 208c 30c 30Promoted from Sub-List
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21/07/2014Mynydd Cae-du135SN 728 98522719433c 28Promoted from Sub-List due to 227m summit and 194m bwlch spot height on the OS enlarged Geograph map
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21/07/2014Pt. 237m135, 136SN 809 977237c 203c 34c 33Promoted from Sub-List due to 237m summit spot height on the OS enlarged Geograph map
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21/07/2014Pt. 252m135SN 797 954252c 221c 31c 30Promoted from Sub-List
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07/07/2014Gribin124SH 675 168211c 172c 39c 39This hill is an automatic entry to the list of Welsh 200m P30 hills and was mistakenly included in the Sub-List when first published
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07/07/2014Craigymerwydd124SH 644 134296c 263c 33c 32Promoted from Sub-List
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07/07/2014Craig y Castell124SH 694 17229826434c 33Promoted from Sub-List due to 298m summit and 264m bwlch spot height on the OS enlarged Geograph map
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* 06/07/2014
Pt. 227m159SN 547 12122719730c 29Promoted from Sub-List due to 227m summit spot height on the OS enlarged Geograph map
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30/06/2014
Mynydd Llwyn-gwern
135SH 766 04527624234c 34Promoted from Sub-List due to 276m summit spot height on Harvey Maps and 242m bwlch spot height on the OS enlarged Geograph map
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23/06/2014Pt. 238m136
SO 111 962 / SO 103 962
238c 208c 30c 23Twin Top promotion from Sub-List due to two 238m summit spot heights on the OS enlarged Geograph map
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23/06/2014Pt. 249m136SO 137 9502492133628Promoted from Sub-List due to 249m summit spot height on the OS enlarged Geograph map
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* 23/06/2014
Boncyn y Beddau136SO 107 98125322231c 27Promoted from Sub-List
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23/06/2014Stingwern Wood136SJ 145000c 258c 198c 60c 54Summit relocation from 251m hill at SO 154 997
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23/06/2014Bwlch Clump125SJ 170 1082622323030New Twin Top with already existing P30 at SJ 173 109
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* 12/06/2014
Pt. 228m145, 159SN 354 246228c 198c 30c 29Promoted from Sub-List due to 228m summit spot height on the OS enlarged Geograph map
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09/06/2014Y Foel125SH 993 117258c 227c 31c 31Promotion from Sub-List
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02/06/2014Coed Pen-y-gelli116SJ 135 762233c 203c 30c 30Promoted from Sub-List and twinned with Coed Moel-dda at SJ 143 754
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02/06/2014Pen y Ball116SJ 173 758258c 227c 31c 31Not included in original P30 list
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02/06/2014Billins116SJ 195 719294c 263c 31c 31Promoted from Sub-List
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26/05/2014Pt. 211m116SJ 060 618211c 181c 30c 29Promotion from Sub List
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26/05/2014Pt. 253m116SH 940 639253c 223c 30c 24Promoted from Sub-List
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