{"text_format":"dbase-jsonl-2026-09-30","columns":[{"name":"get","type":"number","width":11,"decimals":0},{"name":"ges","type":"character","width":110},{"name":"gep","type":"character","width":120},{"name":"id_number","type":"character","width":25},{"name":"name","type":"character","width":100},{"name":"ngr","type":"character","width":15},{"name":"x","type":"number","width":11,"decimals":0},{"name":"y","type":"number","width":11,"decimals":0},{"name":"type","type":"character","width":25},{"name":"condition_v","type":"character","width":15},{"name":"associated_","type":"character","width":40},{"name":"rowid","type":"number","width":11,"decimals":0}],"n_rows":325,"rows_kept":325,"cut":false,"deleted_skipped":0,"read_ended":"whole","bounds":"16MiB/16384/4096/first_that_fit","version":"dbase_level_three_memo","encoding_class":"enc_absent","reader":"statdb_count/9"}
[4,null,null,"IWW002","Feeder leat Hiwaun Pond","SN9413706068",294137,206068,"Leat","D/U","Hirwaun",4]
[4,null,null,"IWW003","Nant Ochain","SN93677 05886",293677,205886,"Stream","N/A","Hirwaun",5]
[4,null,null,"IWW005","Leat for Hirwaun Pond","SN9393705647",293937,205647,"Leat","D/U","Hirwaun",7]
[4,null,null,"IWW007","Leat and Sluice for New Pond","SN9470405425",294704,205425,"Sluice","D/U","Hirwaun",8]
[4,null,null,"IWW009","Nant y Bwlch","SN9511704652",295117,204652,"Stream","N/A","Hirwaun",9]
[4,null,null,"IWW010","River Cynon","SN9532102605",295321,202605,"River","N/A","Hirwaun, Llwydcoed",10]
[4,null,null,"IWW019","Leat in Vicinity of Hirwaun Ironworks","SN95781 05890",295781,205890,"Leat","D","Hirwaun",11]
[4,null,null,"IWW020","Leat for Hirwaun Brickworks","SN96049 05613",296049,205613,"Leat","B","Hirwaun",13]
[4,null,null,"IWW023","Leat at Hirwaun Ironworks","SN95850 05617",295850,205617,"Leat","B","Hirwaun",14]
[4,null,null,"IWW014","Outlet/Overflow Channel for Reservoir at Bute Pit","SN95244 04570",295244,204570,"Leat","U","Hirwaun",16]
[4,null,null,"IWW013","Feeder Leat for Reservoir at Bute Pit","SN95169 04581",295169,204581,"Leat","D","Hirwaun",18]
[4,null,null,"IWW027","Leat Near Craig Colliery Hirwaun","SN96264 03907",296264,203907,"Leat","D","N/A",21]
[4,null,null,"IWW046","Upper Feeder Channel, Llwydcoed Ironworks","SN9723904490",297239,204490,"Water Channel","A/B","Llwydcoed",22]
[4,null,null,"IWW021","Leat at Hirwaun Brickworks","SN96089 06125",296089,206125,"Leat","B","Hirwaun",24]
[4,null,null,"IWW049","Lower Feeder Channel, Llwydcoed Ironworks","SN9838404507",298384,204507,"Water Channel","B","Llwydcoed",26]
[4,null,null,"IWW058","Leat, Llwydcoed Ironworks","SN9840104855",298401,204855,"Leat","A/B","Llwydcoed",27]
[4,null,null,"IWW055","Possible Leat, Llwydcoed Ironworks","SN99430 04057",299430,204057,"Leat","B","Aberdare",30]
[4,null,null,"IWW066","Nant Wenallt, Abernant","SO01109 03421",301109,203421,"Stream","N/A","Abernant",34]
[4,null,null,"IWW065","Nant Wenallt, Abernant","SO01318 03627",301318,203627,"Water Channel","B","Abernant",35]
[4,null,null,"IWW071","Feeder Channel for Forge Pond, Abernant","SO01297 02675",301297,202675,"Water Channel","D","Abernant",38]
[4,null,null,"IWW073","Water Pipe, Abernant","SO01505 02423",301505,202423,"Water Pipe","U","Abernant",39]
[4,null,null,"IWW072","Water Pipe, Abernant","SO01152 02525",301152,202525,"Water Pipe","U","Abernant",40]
[4,null,null,"IWW075","Aberdare Canal","SO01217 02191",301217,202191,"Canal","N/A","various",41]
[4,null,null,"IWW063","Leat, Abernant Ironworks","SO01253 03648",301253,203648,"Leat","U","Abernant",42]
[4,null,null,"IWW067","Reservoir, Abernant Ironworks","SO01149 03471",301149,203471,"Water Channel","B","Abernant",44]
[4,null,null,"IWW059","Outlet Leat, Gadlys Ironworks","SO0020402790",300204,202790,"Leat","D/U","Gadlys",45]
[4,null,null,"IWW056","Possible Outlet Leat for Llwydcoed Ironworks","SN99739 03516",299739,203516,"Leat","B","Aberdare",46]
[4,null,null,"IWW054","Nant y Derlwyn","SN99437 04029",299437,204029,"Stream","N/A","Aberdare",47]
[4,null,null,"IWW052","Stream Near Llwydcoed Ironworks","SN99545 04582",299545,204582,"Stream","N/A","Aberdare",48]
[4,null,null,"IWW074","Leat, Abernant Forge and Mills","SO00720 02389",300720,202389,"Leat","B","Abernant?",49]
[4,null,null,"IWW070","Leat, Forge pond, Abernant","SO01205 03270",301205,203270,"Leat","U","Abernant",50]
[4,null,null,"IWW076","Aman River, Aberaman","ST00506 99556",300506,199556,"River","N/A","Aberaman",51]
[4,null,null,"IWW077","Leat Cwmneol Colliery, Aberaman","ST00503 99542",300503,199542,"Leat","U","Aberaman",55]
[4,null,null,"IWW080","Leat Black Band Pit, Aberaman","SO01448 00149",301448,200149,"Leat","U","Aberaman",56]
[4,null,null,"IWW083","Cwm Du Stream","ST01457 99941",301457,199941,"Stream","N/A","Aberaman",58]
[4,null,null,"IWW053","Possible Outlet Leat Llwydcoed Ironworks","SN99509 04257",299509,204257,"Leat","B","Aberdare",59]
[4,null,null,"IWW140","Leat, Bute Town Reservoir","SO10231 09186",310231,209186,"Leat","U","Rhymney",62]
[4,null,null,"IWW141","Leat, Bute Town Reservoir","SO10276 09207",310276,209207,"Leat","U","Rhymney",63]
[4,null,null,"IWW142","Leat, Bute Town Reservoir","SO09684 09184",309684,209184,"Leat","B","Rhymney",64]
[4,null,null,"IWW144","Leat, Jepson's Pond","SO08187 08634",308187,208634,"Leat","B","Dowlais",65]
[4,null,null,"IWW143","Leat, Bute Town Reservoir","SO10285 09253",310285,209253,"leat","B","Rhymney",67]
[4,null,null,"IWW133","Outlet leat, Bute Town Reservoir","SO09837 08847",309837,208847,"Leat","B","Rhymney",68]
[4,null,null,"IWW132","Nant Carno","SO09367 08623",309367,208623,"Stream","N/A","Rhymney",69]
[4,null,null,"IWW134","Leat, Bute Town Reservoir","SO09462 08632",309462,208632,"Leat","B","Rhymney",70]
[4,null,null,"IWW135","Leat Bute Town Reservoir","SO08956 08889",308956,208889,"Leat","B","Rhymney",71]
[4,null,null,"IWW137","Nant yr Helyg","SO09724 09138",309724,209138,"Stream","N/A","Rhymney",72]
[4,null,null,"IWW136","Leat Supplying Bute Town Reservoir","SO09423 09013",309423,209013,"Leat","B","Rhymney",73]
[4,null,null,"IWW123","Leat, Rhymney Ironworks","SO10841 07323",310841,207323,"Leat","D","Rhymney",75]
[4,null,null,"IWW121","Leat near Rhymney Ironworks","SO10086 07029",310086,207029,"Leat","B","Rhymney",76]
[4,null,null,"IWW145","Leat for Reservoir at Rhymney Ironworks","SO10346 07064",310346,207064,"Leat","B","Rhymney",78]
[4,null,null,"IWW115","Leat, New Dyffryn Pit, Rhymney","SO10316 06744",310316,206744,"Leat","B","Rhymney",82]
[4,null,null,"IWW124","Leat, Rhymney Ironworks","SO10066 07045",310066,207045,"Leat","B","Rhymney",83]
[4,null,null,"IWW147","Feeder Channel, Rhymney","SO09891 09724",309891,209724,"Leat","B","Rhymney",86]
[4,null,null,"IWW148","Leat Bryn-brith Pit reservoir","SO11227 09593",311227,209593,"Leat","B","Rhymney?",88]
[4,null,null,"IWW151","Leat, Bryn-brith Pit","SO11266 09241",311266,209241,"Leat","D","Rhymney?",89]
[4,null,null,"IWW153","Leat Bryn-brith, Rhymney","SO11394 09228",311394,209228,"Leat","D","N/A",90]
[4,null,null,"IWW155","Leat, Bryn-brith Reservoir","SO11320 09331",311320,209331,"Leat","D","Rhymney",91]
[4,null,null,"IWW156","Leat, Bryn-brith Reservoir","SO11139 07360",311139,207360,"Leat","B","Rhymney",94]
[4,null,null,"IWW162","Leat, Rhymney Ironworks","SO11483 07473",311483,207473,"Leat","D","Rhymney",98]
[4,null,null,"IWW166","Leat, Rhymney Ironworks","SO11692 07258",311692,207258,"Leat","B","Rhymney",99]
[4,null,null,"IWW167","Leat, Rhymney Ironworks","SO11805 06663",311805,206663,"Leat","U","Rhymney",100]
[4,null,null,"IWW169","Leat, Rhymney","SO11954 07271",311954,207271,"Leat","B","Rhymney",101]
[4,null,null,"IWW157","Leat, Nant-melyn Pit","SO11226 09075",311226,209075,"Leat","D","Rhymney?",103]
[4,null,null,"IWW109","Leat Near Bute Terrace, Rhymney","SO11324 06513",311324,206513,"Leat","D","Rhymney",106]
[4,null,null,"IWW116","Leat, New Dyffryn Pit, Rhymney","SO11198 06647",311198,206647,"Leat","D","Rhymney",107]
[4,null,null,"IWW107","Leat, Terrace Pit, Rhymney","SO11049 06413",311049,206413,"Leat","B","Rhymney",108]
[4,null,null,"IWW106","Leat, Terrace Pit, Rhymney","SO11119 06377",311119,206377,"Leat","B","Rhymney?",109]
[4,null,null,"IWW108","Leat, Terrace Pit, Rhymney","SO11291 06451",311291,206451,"Leat","D","Rhymney",110]
[4,null,null,"IWW101","Leat, West of Terrace Pit, Rhymney","SO09974 06085",309974,206085,"Leat","B","Rhymney",111]
[4,null,null,"IWW102","Stream, West of Terrace Pit, Rhymney","SO10554 06296",310554,206296,"Stream","N/A","Rhymney",112]
[4,null,null,"IWW104","Stream, West of Terrace Pit, Rhymney","SO10830 06455",310830,206455,"Stream","N/A","Rhymney",113]
[4,null,null,"IWW103","Leat, West of Terrace Pit, Rhymney","SO11033 06275",311033,206275,"Leat","B","Rhymney",114]
[4,null,null,"IWW118","Leat, River Rhymney","SO11573 06612",311573,206612,"Leat","U","Rhymney",115]
[4,null,null,"IWW117","River Rhymney","SO10696 06342",310696,206342,"River","N/A","Rhymney",117]
[4,null,null,"IWW161","Leat, Rhymney Brick and Tile Works","SO10941 07960",310941,207960,"Leat","D","Rhymney",119]
[4,null,null,"IWW159","Leat, Twyn-carno","SO11015 08346",311015,208346,"Leat","D","Rhymney",120]
[4,null,null,"IWW128","Leat, Pitwellt Pit, Rhymney","SO10725 07691",310725,207691,"Leat","D","Rhymney",122]
[4,null,null,"IWW111","Leat, New Dyffryn Pit, Rhymney","SO11029 06889",311029,206889,"Leat","U","Rhymney",124]
[4,null,null,"IWW112","Leat, New Dyffryn Pit, Rhymney","SO11005 06918",311005,206918,"Leat","U","Rhymney",125]
[4,null,null,"IWW126","Leat, Rhymney Ironworks","SO10872 07542",310872,207542,"Leat","D","Rhymney",126]
[4,null,null,"IWW138","Leat, Bute Town Reservoir","SO09963 09122",309963,209122,"Leat","B","Rhymney",128]
[4,null,null,"IWW139","Leat, Bute Town Reservoir","SO08267 08605",308267,208605,"Leat","B","Rhymney and?",129]
[4,null,null,"IWW224","Leat, Globe Pit, Tredegar","SO14011 09412",314011,209412,"Leat","D","Tredegar",132]
[4,null,null,"IWW220","Leat, Sirhowy Ironworks","SO14227 09906",314227,209906,"Leat","D","Sirhowy",135]
[4,null,null,"IWW218","Leat, Sirhowy","SO13855 09964",313855,209964,"Leat","D","Sirhowy",136]
[4,null,null,"IWW217","Leat, Sirhowy","SO13831 09947",313831,209947,"Leat","D","Sirhowy?",138]
[4,null,null,"IWW219","Sirhowy River","SO13726 08356",313726,208356,"River","N/A","Sirhowy and Tredegar",140]
[4,null,null,"IWW214","Leat, Quick Pit, Sirhowy","SO13501 10199",313501,210199,"Leat","D",null,142]
[4,null,null,"IWW595","Leat, Tredegar Ironworks","SO14962 09266",314962,209266,"Leat","B","Tredegar",146]
[4,null,null,"IWW271","Leat, Tredegar Ironworks","SO14891 09079",314891,209079,"Leat","B","Tredegar",147]
[4,null,null,"IWW272","Leat, Tredegar Ironworks","SO14962 09090",314962,209090,"Leat","B","Tredegar",148]
[4,null,null,"IWW274","Leat, Tredegar Ironworks","SO15123 08849",315123,208849,"Leat","B","Tredegar",149]
[4,null,null,"IWW273","Leat system, Tredegar Ironworks","SO1516608939",315166,209102,"Leat","A/B","Tredegar",150]
[4,null,null,"IWW279","Leat, Scotch Peter's Reservoir","SO15469 08300",315469,208300,"Leat","B","Tredegar",152]
[4,null,null,"IWW278","Feeder Leat, Scotch Peter's Reservoir","SO15603 07520",315603,207520,"Leat","B","Tredegar",153]
[4,null,null,"IWW276","Possible Leat, Tredegar Ironworks","SO15515 08856",315515,208856,"Leat","B","Tredegar",154]
[4,null,null,"IWW277","Leat, Tredegar Ironworks","SO1556708961",315567,208960,"Leat","B/C","Tredegar",155]
[4,null,null,"IWW282","Leat, Mount Pleasant Brickworks","SO15107 08778",315107,208778,"Leat","B","?",156]
[4,null,null,"IWW280","Feeder Pond, Tredegar Ironworks","SO15223 08726",315223,208726,"Pond","B","Tredegar Ironworks",158]
[4,null,null,"IWW281","Leat, Mount Pleasant Brickworks","SO15093 08742",315093,208742,"Leat","B","?",159]
[4,null,null,"IWW286","Leat, Georgetown reservoir, Tredegar","SO1524307690",315242,207690,"Leat","A/B","Tredegar?",161]
[4,null,null,"IWW284","Leat, Georgetown reservoir, Tredegar","SO15579 07773",315579,207773,"Leat","U","Tredegar?",162]
[4,null,null,"IWW285","Leat, Georgetown Reservoir, Tredegar","SO1558807865",315588,207864,"Leat","B/U","Tredegar?",163]
[4,null,null,"IWW211","Leat, Cefn Golau, Tredegar","SO14022 06571",314022,206571,"Leat","B","Tredegar?",166]
[4,null,null,"IWW205","Leat, Ashtree Coal Pit, Tredegar","SO14132 07710",314132,207710,"Leat","B","?",167]
[4,null,null,"IWW206","Leat, Ashtree Coal Pit, Tredegar","SO1275207986",313932,208045,"Leat","B","?",170]
[4,null,null,"IWW207","Leat, Ashtree Coal Pit, Tredegar","SO14045 07757",314045,207757,"Leat","B","?",171]
[4,null,null,"IWW210","Leat, Cefn Goleu, Tredegar","SO1276407678",312763,207677,"Leat","B","Tredegar?",172]
[4,null,null,"IWW198","Reservoir near Mountain Pit, Tredegar","SO13350 08741",313350,208741,"Reservoir","B","?",176]
[4,null,null,"IWW199","Leat Near Mountain Pit, Tredegar","SO13184 08766",313184,208766,"Leat","B","?",177]
[4,null,null,"IWW197","Reservoir, Mountain Pit, Tredegar","SO13493 08868",313493,208868,"Reservoir","U","?",179]
[4,null,null,"IWW262","Leat, Rhyd-y-blew","SO16174 11071",316174,211071,"Leat","D","Beaufort",211]
[4,null,null,"IWW263","Stream system, Mount Pleasant","SO16366 10345",316366,210345,"Stream","B",null,212]
[4,null,null,"IWW942","Additional Leats, Rhyd-y-blew System","SO1574910019",315749,210019,"Leat","D",null,213]
[4,null,null,"IWW265","Leat, Ebbw Vale","SO15789 10343",315789,210343,"Leat","U","?",214]
[4,null,null,"IWW253","Leat, Waun-y-pound","SO15398 10819",315398,210819,"Leat","D","Sirhowy/Tredegar?",215]
[4,null,null,"IWW254","Leat, Waun-y-pound","SO15448 10834",315448,210834,"Leat","D","Sirhowy/Tredegar?",216]
[4,null,null,"IWW251","Leat, Waun-y-Pound","SO15363 10793",315363,210793,"Leat","A/B","Sirhowy/Tredegar?",217]
[4,null,null,"IWW252","Leat, Waun-y-Pound","SO1546510825",315464,210824,"Leat","A/B","Sirhowy/Tredegar?",218]
[4,null,null,"IWW250","Leat, Waun-y-Pound","SO15183 10592",315183,210592,"Leat","A/B","Sirhowy/Tredegar?",219]
[4,null,null,"IWW233","Leat, Sirhowy Ironworks","SO14541 10516",314541,210516,"Leat","D","Sirhowy",220]
[4,null,null,"IWW225","Feeder Channel, Dukestown, Sirhowy","SO13423 10444",313423,210444,"Water Channel","U","Sirhowy",221]
[4,null,null,"IWW226","Feeder Channel, Sirhowy Ironworks","SO14172 10188",314172,210188,"Water Channel","B","Sirhowy",222]
[4,null,null,"IWW943","Additional Leats, Rhyd-y-blew System","SO1534810975",315348,210975,"Leat","D",null,224]
[4,null,null,"IWW238","Leat Bryn-pica, Sirhowy","SO1461410451",314613,210451,"Leat","B","Sirhowy",225]
[4,null,null,"IWW234","Leat, Sirhowy Ironworks","SO14416 10553",314416,210553,"Leat","D","Sirhowy",226]
[4,null,null,"IWW235","Leat, Sirhowy Ironworks","SO14432 10523",314432,210523,"Leat","D","Sirhowy",227]
[4,null,null,"IWW260","Leat, Rhyd-y-blew Pond","SO16008 20772",316008,210772,"Leat","B","Beaufort?",230]
[4,null,null,"IWW287","Leat, Georgetown reservoir, Tredegar","SO1542607829",315426,207828,"Leat","A/B","tredegar",232]
[4,null,null,"IWW305","Leat, Ebbw Vale Quarry","SO15820 09260",315820,209260,"Leat","D","Ebbw Vale",234]
[4,null,null,"IWW302","Leat, Victoria Colliery","SO16980 08006",316980,208006,"Leat","D","Victoria Colliery",236]
[4,null,null,"IWW298","Stream, Victoria Ironworks","SO16487 07384",316487,207384,"Stream","N/A","Victoria Ironworks",240]
[4,null,null,"IWW299","Stream, Lethbridge Terrace","SO16620 07860",316620,207860,"Stream","N/A","Victoria Ironworks/Victoria Colliery",241]
[4,null,null,"IWW301","Leat, Lethbridge Terrace","SO16905 07970",316905,207970,"Leat","U","Victoria Colliery/Victoria Ironworks",242]
[4,null,null,"IWW295","Leat, Glan Ebbw","SO17070 07379",317070,207379,"Leat","U","Victoria Ironworks",244]
[4,null,null,"IWW307","Ebbw River","SO17192 07096",317192,207096,"River","N/A","Victoria ironworks",245]
[4,null,null,"IWW315","Nant Tyn-y-fyd","SO17360 07214",317360,207214,"Stream","N/A","Victoria Ironworks",246]
[4,null,null,"IWW316","Outflow Leat, Victoria Ironworks","SO17322 07333",317322,207333,"Leat","D","Victoria Ironworks",247]
[4,null,null,"IWW311","Water pipe, Twynffrwd","SO17473 07343",317473,207343,"Water Pipe","B","Victoria Ironworks?",248]
[4,null,null,"IWW318","Leat, Ty'n-y-fyd","SO17516 07220",317516,207220,"Leat","D","Victoria Ironworks",249]
[4,null,null,"IWW320","Leat, Coed Ty'n-y-fyd","SO17503 07549",317503,207549,"Leat","D","Victoria Ironworks",252]
[4,null,null,"IWW319","Leat, Coed Ty'n-y-fyd","SO17370 07380",317370,207380,"Leat","D","Victoria Ironworks",253]
[4,null,null,"IWW314","Stream, Garn Wood","SO18116 07059",318116,207059,"Stream","N/A","Bessemer/Victoria",257]
[4,null,null,"IWW327","Stream, Daren y Truyn","SO18109 07300",318109,207300,"Stream","N/A","Bessemer/Victoria",258]
[4,null,null,"IWW326","Stream, Daren y Truyn","SO18045 07266",318045,207266,"Stream","N/A","Bessemer/Victoria",259]
[4,null,null,"IWW325","Leat, Daren y Truyn","SO18005 07355",318005,207355,"Leat","B","Bessemer/Victoria",260]
[4,null,null,"IWW324","Leat, Daren y Truyn","SO17872 07457",317872,207457,"Leat","B","Bessemer/Victoria",261]
[4,null,null,"IWW331","Leat, Gnapwg system","SO17649 08780",317649,208780,"Leat","B","Ebbw Vale",263]
[4,null,null,"IWW334","Leat, Gnapwg Reservoir","SO17663 08668",317663,208668,"Leat","B","Bessemer Steelworks?",265]
[4,null,null,"IWW330","Leat, Gwaun dyweirch","SO17488 08749",317488,208749,"Leat","U","Ebbw Vale?",267]
[4,null,null,"IWW328","Leat, Gnapwg system","SO17479 07311",317479,207311,"Leat","B","Ebbw Vale/Bessemer",268]
[4,null,null,"IWW340","Leat, Coed Ty-llwyn","SO17616 08195",317616,208195,"Leat","B","Bessemer Steel Works",270]
[4,null,null,"IWW339","Leat, Coed Ty-llwyn","SO17605 08070",317605,208070,"Leat","U","Victoria Colliery/Bessemer Steel Works",271]
[4,null,null,"IWW338","Leat, Coed Ty-llwyn","SO17351 08020",317351,208020,"Leat","D","Victoria Colliery/Bessemer Steel Works",272]
[4,null,null,"IWW336","Possible Feeder Channel Ebbw Vale","SO16933 08358",316933,208358,"Leat","D","Ebbw Vale/Victoria Colliery?",273]
[4,null,null,"IWW342","Leat, Bessemer Reservoir","SO17529 08461",317529,208461,"Leat","D","Bessemer Steelworks",275]
[4,null,null,"IWW341","Leat, Bessemer Steelworks","SO17282 08439",317282,208439,"Leat","D","Bessemer Steelworks",276]
[4,null,null,"IWW345","Stream, Gnapwg","SO17862 08624",317862,208624,"Stream","B","Bessemer steelworks?",277]
[4,null,null,"IWW343","Leat, Coal Mine, Ebbw Vale","SO17448 08928",317448,208928,"Leat","D","Ebbw Vale",279]
[4,null,null,"IWW344","Leat, Coal Mine, Ebbw Vale","SO17458 09022",317458,209022,"Leat","D","Ebbw Vale",281]
[4,null,null,"IWW357","Leat, Coalbrookvale","SO18789 09045",318789,209045,"Leat","B","Coalbrookvale ironworks",288]
[4,null,null,"IWW361","Leat, Ysgubor Fach","SO19047 09253",319047,209253,"Leat","B","Coalbrookvale ironworks",291]
[4,null,null,"IWW363","Leat, Bwlch-y-garn","SO17839 09236",317839,209236,"Leat","U","Ebbw Vale/Bwlch-y-garn",295]
[4,null,null,"IWW366","Leat, Bwlch-y-garn","SO17882 09288",317882,209288,"Leat","U","Ebbw Vale/Bwlch-y-garn",296]
[4,null,null,"IWW369","Leat, Bwlch-y-garn","SO17899 09341",317899,209341,"Leat","U","Ebbw Vale/Bwlch-y-garn",297]
[4,null,null,"IWW376","Leat, Highfield House","SO16314 09852",316314,209852,"Leat","D","Ebbw Vale brickworks",304]
[4,null,null,"IWW944","Additional Leats, Waun-y-Pound System","SO1507709498",315077,209498,"Leat","D",null,305]
[4,null,null,"IWW402","Stream, Ebbw Vale Brickworks","SO15880 09379",315880,209379,"Stream","N/A","Ebbw Vale brickworks?",306]
[4,null,null,"IWW309","Leat, Mount Pleasant","SO16314 09886",316314,209886,"Leat","D","Ebbw Vale brickworks?",314]
[4,null,null,"IWW404","Leat, Pen-y-waun","SO10138 10346",318138,210346,"Leat","B","Nant-y-glo?",319]
[4,null,null,"IWW391","Leat, Ty'r-meddyg","SO17144 10744",317144,210744,"Leat","D","Pant y fforest pit",324]
[4,null,null,"IWW398","River Ebbw","SO16529 09929",316529,209929,"River","N/A","Beaufort/Ebbw Vale",330]
[4,null,null,"IWW388","Leat, Ebbw Vale","SO16815 10388",316815,210388,"Leat","D","Ebbw Vale?",331]
[4,null,null,"IWW394","Leat, Ebbw Vale","SO16840 10372",316840,210372,"Leat","D","Ebbw Vale",333]
[4,null,null,"IWW395","Leat, Newchurch","SO16847 10388",316847,210388,"Leat","D","Ebbw Vale",334]
[4,null,null,"IWW392","Feeder, Ebbw Vale","SO16931 10422",316931,210422,"Feeder","D","Ebbw Vale",335]
[4,null,null,"IWW393","Leat, Ebbw Vale","SO16905 10128",316905,210128,"Leat","D","Ebbw Vale?",336]
[4,null,null,"IWW386","Leat, Newtown","SO16897 10117",316897,210117,"Leat","B","Ebbw Vale",337]
[4,null,null,"IWW412","Leat, Beaufort","SO17069 11219",317069,211219,"Leat","D","Beaufort",339]
[4,null,null,"IWW415","Leat, Beaufort","SO17091 11016",317091,211016,"Leat","U","Beaufort ironworks",340]
[4,null,null,"IWW389","Leat, Ty'r-meddyg","SO17128 10405",317128,210405,"Leat","D","Pant y fforest mine",341]
[4,null,null,"IWW381","Leat, Newtown","SO17192 10211",317192,210211,"Leat","U","Ebbw Vale?",342]
[4,null,null,"IWW397","Leat, Pant-y-gof","SO16876 10016",316876,210016,"Leat","U","Ebbw Vale ironworks",343]
[4,null,null,"IWW358","Leat, Ebbw Vale","SO16883 09448",316883,209448,"Leat","U","Ebbw Vale",345]
[4,null,null,"IWW418","Leat, Maes-Alec-uchaf","SO17310 11273",317310,211273,"Leat","D","Beaufort",346]
[4,null,null,"IWW382","Leat, Pant-y-fforest","SO17222 10445",317222,210445,"Leat","D","Pant y fforest pit",347]
[4,null,null,"IWW383","Leat, Pant-y-fforest","SO17272 10640",317272,210640,"Leat","U","Pant y fforest mine",348]
[4,null,null,"IWW425","Leat, Waun-rydd","SO17574 12822",317574,212822,"Leat","B","Nant-y-glo",353]
[4,null,null,"IWW427","Leat, Waun-rydd","SO17464 12916",317464,212916,"Leat","D","Nant-y-glo",355]
[4,null,null,"IWW414","Leat, Beaufort","SO17093 11127",317093,211127,"Leat","B","Beaufort ironworks",356]
[4,null,null,"IWW421","Leat, Ebbw Vale","SO17390 09366",317390,209366,"Leat","B","Ebbw Vale",357]
[4,null,null,"IWW422","Leat, Ebbw Vale","SO17385 09457",317385,209457,"Leat","U","Ebbw Vale",358]
[4,null,null,"IWW401","Leat, Pont-y-gof","SO16954 09933",316954,209933,"Leat","U","Ebbw Vale",360]
[4,null,null,"IWW430","Leat, Coalbrookvale","SO18765 09075",318764,209075,"Leat","B","Coalbrookvale ironworks",361]
[4,null,null,"IWW442","Leat, Ty-coch","SO1732812078",317328,212078,"Leat","B/E","Nant-y-glo",363]
[4,null,null,"IWW448","Leat, Waun-dew","SO1729011886",317290,211885,"Leat","B","Nant-y-glo",364]
[4,null,null,"IWW447","Leat, Waun-dew","SO1731011868",317310,211867,"Leat","A/B","Nant-y-glo",366]
[4,null,null,"IWW444","Leat, Ty-coch","SO1745312103",317452,212103,"Leat","A/B","Nant-y-glo",368]
[4,null,null,"IWW449","Leat, Ty-coch","SO1734512149",317345,212148,"Leat","C","Nant-y-glo",369]
[4,null,null,"IWW437","Leat, Blaen-clydach","SO1678612262",316786,212262,"Leat","B/C","Nant-y-glo",371]
[4,null,null,"IWW439","Leat, Blaen-clydach","SO1774313285",317743,213284,"Leat","E","Nant-y-glo",372]
[4,null,null,"IWW452","Leat, Bryn Pit","SO1762012421",317619,212421,"Leat","E","Nant-y-glo",374]
[4,null,null,"IWW455","Leat, Bryn Pit","SO17695 12403",317695,212403,"Leat","B","Nant-y-glo",375]
[4,null,null,"IWW453","Leat, Bryn Pit","SO18033 12406",318033,212406,"Leat","D","Nant-y-glo",376]
[4,null,null,"IWW454","Leat, Bryn Mawr","SO1799712092",317997,212091,"Leat","B","Nant-y-glo",378]
[4,null,null,"IWW457","Leat, Bryn Mawr","SO1790312077",317902,212077,"Leat","A/B","Nant-y-glo",380]
[4,null,null,"IWW464","Leat, Tai-Humphrey-Hughes","SO17593 11487",317593,211487,"Leat","B","Nant-y-glo",382]
[4,null,null,"IWW462","Leat, Tai-Humphrey-Hughes","SO17979 11414",317979,211414,"Leat","D/E","Nant-y-glo",383]
[4,null,null,"IWW461","Leat, Tai-Humphrey-Hughes","SO17986 11432",317986,211432,"Leat","D/E","Nant-y-glo",384]
[4,null,null,"IWW463","Leat, Tai-Humphrey-Hughes","SO1799611340",317996,211339,"Leat","D/E","Nant-y-glo",385]
[4,null,null,"IWW465","Leat, Tai-Humphrey-Hughes","SO1805211417",318052,211417,"Leat","C/E","Nant-y-glo",387]
[4,null,null,"IWW468","Leat, Twyn-cynnordy","SO1840211431",318401,211430,"Leat","A/B","Nant-y-glo",389]
[4,null,null,"IWW487","Leat, Blaen-y-nant","SO19698 11390",319698,211390,"Leat","D","Blaen-y-nant iron ore mine",396]
[4,null,null,"IWW488","Leat, Blaen-y-nant","SO19724 11392",319724,211392,"Leat","D","Blaen-y-nant iron ore mine",397]
[4,null,null,"IWW489","Leat, Blaen-y-nant","SO19678 11299",319678,211299,"Leat","U","Blaen-y-nant iron ore mine",398]
[4,null,null,"IWW493","Leat, Blaen-y-nant","SO19573 11262",319573,211262,"Leat","D","Blaen-y-nant iron ore mine",399]
[4,null,null,"IWW494","Leat, Blaen-y-nant","SO19531 11249",319531,211249,"Leat","D","Blaen-y-nant iron ore mine",400]
[4,null,null,"IWW492","Leat, Blaen-y-nant","SO19558 11279",319558,211279,"Leat","D","Blaen-y-nant",401]
[4,null,null,"IWW483","Leat, Winch's Buildings","SO18300 10922",318300,210922,"Leat","D","Nant-y-glo",405]
[4,null,null,"IWW481","Leat, Winch's buildings","SO1832010912",318320,210912,"Leat","B","Nant-y-glo",406]
[4,null,null,"IWW480","Leat, Winch's Row","SO18421 11091",318421,211091,"Leat","D","Nant-y-glo",407]
[4,null,null,"IWW484","Feeder leat, Winch's Row","SO18511 09793",318511,209793,"Feeder","B","Nant-y-glo",408]
[4,null,null,"IWW469","Leat, Winch's Row","SO18827 11345",318827,211345,"Leat","D","Nant-y-glo",410]
[4,null,null,"IWW478","Leat, Winch's Row","SO18753 11425",318753,211425,"Leat","D","Nant-y-glo",411]
[4,null,null,"IWW471","Leat, Winch's Row","SO18998 11318",318998,211318,"Leat","B","Nant-y-glo",412]
[4,null,null,"IWW472","Leat, Winch's Row","SO18596 11061",318596,211061,"Leat","D","Nant-y-glo",413]
[4,null,null,"IWW473","Ebbw Fach River","SO18717 11008",318717,211008,"River","N/A","Nant-y-glo",414]
[4,null,null,"IWW474","Leat, Nant-y-glo","SO18799 10690",318799,210690,"Leat","D","Nant-y-glo",415]
[4,null,null,"IWW502","Leat, Croes-y-ceiliog","SO19681 10559",319681,210559,"Leat","B","Nant-y-glo",420]
[4,null,null,"IWW506","Leat, Trostre Pit","SO19116 08907",319116,208907,"Leat","D","Coalbrookvale ironworks",427]
[4,null,null,"IWW513","Leat, Rhiw'r-gored","SO19991 08713",319991,208713,"Leat","D","Blaina",432]
[4,null,null,"IWW508","Leat, Trostre Pit","SO19081 08790",319081,208790,"Leat","B","Coalbrookvale ironworks",433]
[4,null,null,"IWW517","Leat, Bumblow","SO20228 08572",320228,208572,"Leat","D","Blaina",436]
[4,null,null,"IWW514","Leat, Dol-y-garn","SO19974 08618",319974,208618,"Leat","D","Blaina",437]
[4,null,null,"IWW519","Nant Ystruth","SO20693 08595",320693,208595,"Stream","N/A","Blaina",439]
[4,null,null,"IWW526","Nant Ystruth","SO20589 08280",320589,208280,"Stream","N/A","Blaina?",441]
[4,null,null,"IWW530","Leat, Mount Pleasant","SO19700 07981",319700,207981,"Leat","D","Blaina",448]
[4,null,null,"IWW528","Leat, Mount Pleasant","SO19624 07954",319624,207954,"Leat","D","Blaina",449]
[4,null,null,"IWW529","Leat, Mount Pleasant","SO19573 08042",319573,208042,"Leat","U","Blaina",450]
[4,null,null,"IWW532","Leat, Glyn-milwr Pit","SO20681 08113",320681,208113,"Reservoir","B","Glyn-milwr pit",452]
[4,null,null,"IWW534","Leat, Nant-y-glo mine","SO18885 09812",318885,209812,"Leat","U","Nant-y-glo",453]
[4,null,null,"IWW440","Leat, Blaen-clydach","SO1774213290",317741,213290,"Leat","D/E","Nant-y-glo",455]
[4,null,null,"IWW441","River Clydach","SO1790813134",317908,213133,"River","B/E",null,456]
[4,null,null,"IWW553","Leat, Varteg Hill","SO26317 06031",326317,206031,"Leat","U","? Varteg",462]
[4,null,null,"IWW554","Leat, Varteg Hill","SO26402 05903",326402,205903,"Leat","U","? Varteg",463]
[4,null,null,"IWW584","Leat, Varteg Hill","SO26595 05918",326595,205918,"Leat","D","? Varteg",465]
[4,null,null,"IWW566","Nant Ffrwd","SO25108 04893",325108,204893,"Stream","N/A","? Golynos",468]
[4,null,null,"IWW571","Cwmsychan Brook","SO23972 04088",323972,204088,"Stream","N/A","British",471]
[4,null,null,"IWW572","Leat, Cwmsychan","SO24437 04081",324437,204081,"Leat","D","British",472]
[4,null,null,"IWW573","Leat, Cwmsychan","SO25347 04019",325347,204019,"Leat","B","British",473]
[4,null,null,"IWW576","Leat, British Ironworks","SO25911 04013",325911,204013,"Leat","U","British",475]
[4,null,null,"IWW579","Leat, British Ironworks","SO25595 03484",325595,203484,"Leat","U","British",478]
[4,null,null,"IWW582","Leat, Varteg Hill Colliery","SO24866 05708",324866,205708,"Leat","D","?varteg",481]
[4,null,null,"IWW549","Leat, Nant-y-glo Deep Pit","SO18424 09796",318424,209796,"Leat","B","Nant-y-glo",482]
[4,null,null,"IWW548","Leat, Nant-y-glo","SO18893 10277",318893,210277,"Leat","D","Nant-y-glo",483]
[4,null,null,"IWW547","Leat, Bryn Mawr","SO17952 11998",317952,211998,"Leat","U","Nant-y-glo",484]
[4,null,null,"IWW556","Leat, Varteg Hill","SO26178 05946",326178,205946,"Leat","D","?Varteg",485]
[4,null,null,"IWW580","Leat, Pentwyn Foundry","SO26097 03426",326097,203426,"Leat","U","Pentwyn",487]
[4,null,null,"IWW600","Leat, north of Ty-Trist Colliery","SO14277 07866",314277,207866,"Leat","D","?",489]
[4,null,null,"IWW945","Leat, Tredegar Ironworks Reservoir","SO1502508783",315025,208783,"Leat","U",null,491]
[4,null,null,"IWW603","Leat, Mountain Hill, Tredegar","SO1518708938",315187,208938,"Leat","D","Tredegar",496]
[4,null,null,"IWW604","Leat, George Town","SO1512708503",315127,208503,"Leat","B","Tredegar?/Mount Pleasant Brick Works",497]
[4,null,null,"IWW606","Leat system, Y Domen Fawr","SO1595707243",315957,207243,"Leat system","B","Tredegar",499]
[4,null,null,"IWW607","Leat system, Y Domen Fawr","SO1559007575",315590,207574,"Leat system","A/B","Tredegar?",500]
[4,null,null,"IWW608","Y Domen Fawr Leat System","SO1595807498",315958,207498,"Leat system","B","Tredegar",501]
[4,null,null,"IWW609","Scotch Peter's Resevoir leat","SO1581807977",315818,207977,"Leat","B","Tredegar",502]
[4,null,null,"IWW610","Scotch Peter's Reservoir leat system","SO1580908019",315809,208019,"Leat system","B","Tredegar",503]
[4,null,null,"IWW613","Leat system, Scotch Peter's Reservoir","SO1554408077",315544,208077,"Leat system","B","Tredegar",504]
[4,null,null,"IWW614","Leat System, Scotch Peter's Reservoir","SO1537908339",315679,208339,"Leat System","B","Tredegar",505]
[4,null,null,"IWW615","Drainage system, Scotch Peters Reservoir, Tredegar","SO1561808581",315617,208581,"Leat system","B/U","Tredegar",506]
[4,null,null,"IWW616","Leats, Scotch Peter's Reservoir, Tredegar","SO1532608110",315326,208110,"Leat system","B","Tredegar",507]
[4,null,null,"IWW617","Garn Wood Stream","SO1812007057",318120,207057,"Stream","B","Bessemer/Victoria",508]
[4,null,null,"IWW618","Daren y Truyn leat","SO1811107299",318111,207299,"Leat","B","Bessemer/Victoria",509]
[4,null,null,"IWW619","Bessemer Leat","SO1753408099",317534,208099,"Leat","D","Bessemer",510]
[4,null,null,"IWW620","Stream, Gnapwg Reservoir","SO1786108632",317861,208632,"Stream","B","Bessemer Steelworks?",511]
[4,null,null,"IWW621","Leat, Gnapwg System","SO1750009259",317500,209259,"Leat","B","Bessemer/Ebbw Vale",512]
[4,null,null,"IWW622","Leat System, Ebbw Vale","SO1749209355",317492,209355,"Leat system","A/B","Ebbw Vale/Bessemer",513]
[4,null,null,"IWW623","Leat, Blaen-clydach","SO1714113091",317141,213091,"Leat","D","Nant-y-glo",514]
[4,null,null,"IWW624","Leat, Bryn Pit","SO1802012572",318020,212572,"Leat","U","Nant-y-glo?",515]
[4,null,null,"IWW626","Leat system, Bryn-mawr","SO1801711931",318017,211931,"Leat system","B/C","Nant-y-glo",516]
[4,null,null,"IWW629","Leat, Nant-y-glo","SO1894010555",318940,210555,"Leat","D","Nant-y-glo",519]
[4,null,null,"IWW611","Leat system, Turkeytown","SO1938210276",319382,210276,"Leat system","U","Nant-y-glo",521]
[4,null,null,"IWW630","Linear trench, leat?","SO1515309415",315153,209415,"Leat?","B","unknown",523]
[4,null,null,"IWW631","Leat, Croes-y-ceiliog","SO1977910560",319779,210560,"Leat","B","IWW009a",524]
[4,null,null,"IWW909","Spillway of reservoir IWW240","SO1521310654",315212,210653,"Spillway","A",null,526]
[4,null,null,"IWW910","Leat, Reservoir IWW240","SO1518710628",315187,210628,"Leat","A",null,527]
[4,null,null,"IWW913","Leat N-S between EA042.09.11 and EA042.09.09","SO1876913344",318769,213343,"Leat","B",null,533]
[4,null,null,"IWW914","Leat S of EA042.09.11 running E-W","SO1889313337",318893,213337,"leat","B",null,534]
[4,null,null,"IWW915","Leat System North of Pont ar Lwnc","SO1691413681",316914,213681,"Leat","A/B",null,535]
[4,null,null,"IWW924","Leat system west of Gwaun-y-Ffa, Mynydd Llangattwg","SO1692013983",316920,213983,"Leat","A/B",null,537]
[4,null,null,"IWW006","Nant y Cnapiau","SN9410404608",294104,204608,"Stream","D/U",null,634]
[4,null,null,"IWW008","New Pond Leat","SN9491405630",294914,205630,"Leat","D/U",null,635]
[4,null,null,"IWW011","Feeder leat for New Pond","SN9419905737",294199,205737,"Leat","D",null,636]
[4,null,null,"IWW935","Outflow leat of Hirwaun Pond","SN9503705916",295037,205916,"Leat","U",null,637]
[4,null,null,"IWW057","Feeder Channel for Gadlys Ironworks","SN9973403105",299734,203105,"Water Channel","B/D",null,639]
[4,null,null,"IWW926","Leat draining workings, Hirwaun Common","SN9438004478",294380,204478,"Leat","B",null,641]
[4,null,null,"IWW927","Leat draining Gorllwyn Level","SN9434504547",294345,204547,"Leat","B",null,642]
[4,null,null,"IWW928","Stream/leat draining hillside of Hirwaun Common","SN9391204652",293912,204652,"Leat","B",null,643]
[4,null,null,"IWW929","Leat, Tower Craig Level","SN9358004687",293580,204687,"Leat","B",null,644]
[4,null,null,"IWW930","Stream, Tower Craig Level","SN9359304556",293593,204556,"Stream","B",null,645]
[4,null,null,"IWW931","Leat, Tower Craig Level","SN9352304473",293523,204473,"Leat","B",null,646]
[4,null,null,"IWW932","Leat draining workings, Hirwaun Common","SN9345904693",293459,204693,"Leat","B",null,647]
[4,null,null,"IWW934","Leat, Craig Colliery","SN9942801918",299428,201918,"Leat","B",null,649]
[4,null,null,"IWW016","Feeder Channel, North of Hirwaun Ironworks","SN9540106120",295401,206120,"Leat","A/B",null,650]
[4,null,null,"IWW018","Canalised stream, North of Hirwaun Ironworks","SN9561206153",295612,206153,"Stream/Leat","A/B",null,651]
[4,null,null,"IWW551","Leat, Varteg Hill","SO26299 06348",326299,206348,"Leat","D","? Varteg",652]
[4,null,null,"IWW564","Leat, Lower Varteg Colliery, Golynos","SO25630 04877",325630,204877,"Leat","B","? Golynos",655]
[4,null,null,"IWW568","Leat, Golynos Foundry","SO25803 04646",325803,204646,"Leat","D","Golynos",657]
[4,null,null,"IWW569","Leat, Golynos Foundry","SO25837 04573",325837,204573,"Leat","D","Golynos",658]
[4,null,null,"IWW562","Leat, Varteg Old Furnaces","SO26368 05706",326368,205706,"Leat","U","Varteg",659]
[4,null,null,"IWW940","Leat system, Pant Glas","SO25757 03280",325757,203280,"Leat system","B/D","Pentwyn",662]
[4,null,null,"IWW900","Nant Gwaun-y-Ffa","SO1832713973",318327,213973,"Stream/leat","A/B",null,665]
[4,null,null,"IWW912","Leat E-W between EA042.09.11 and EA042.09.09","SO1875613452",318756,213452,"leat","B",null,666]
[4,null,null,"IWW917","Figyn-fawr scouring system","SO1940013326",319400,213326,"Leat","A/B",null,669]
[4,null,null,"IWW918","Nant melyn scouring system","SO1973812598",319738,212598,"Scours","A/B",null,671]
[4,null,null,"IWW919","Waun y Pwll Dwr scouring leat","SO1994510876",319945,210876,"Leat","A/B",null,672]
[4,null,null,"IWW920","Leat cut by Buff Clay Patch","SO1768210150",317682,210150,"Leat","A/B",null,673]
[4,null,null,"IWW921","Dogleg leat above Ebbw Vale","SO1774109853",317741,209853,"Leat","A/B",null,674]
[4,null,null,"IWW923","Diversion leat east of EA042.09.02","SO1793413697",317934,213697,"Leat","A/B",null,675]
[4,null,null,"IWW922","Diversion leat north of EA042.09.02","SO1773713857",317737,213857,"Leat","A/B",null,676]
[4,null,null,"IWW438","Feeder, Blaen-clydach","SO1692013006",317564,213006,"Feeder","A/B","Nant-y-glo",677]
[4,null,null,"IWW946","Leat System Supplying Reservoir IWW633","SO1995013531",319950,213531,"Leat","D/C",null,678]
[4,null,null,"IWW255","Leat, Rhyd-y-blew","SO15348 10995",315348,210995,"Leat","B",null,679]
[4,null,null,"IWW259","Leat, Small Rhyd-y-blew Pond","SO15749 10668",315749,210668,"Leat","D",null,680]
[4,null,null,"IWW317","Stream, Ebbw Vale Brickworks","SO16164 09960",316164,209960,"Stream","N/A",null,681]