Water tracing tests

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Test from Test to Result by type date time
Blind Pot Nicholaston East Rising + Chambers 16 hrs
Oakdale West Sink Nicholaston West Rising + Chambers
Church Sink Nicholaston West Rising + Chambers 20 hrs
Perriswood Sink Underhill Wells + Chambers
Burry Head Rising +
Llwyn-y-Bwch Swallet Leason Well +
Llwyn-y-Bwch Swallet No.1 Leason Well ?
Llwyn-y-Bwch depression Leason Well ?
Stonyford Sink Llanrhidian Rising + 2 days
Stonyford Middle Sink Llanrhidian Rising + 2 days
Ogof New Park Llanrhidian Rising + 2 days
Freedown Sink East Tree Cavern ? Baynton sheepdip
Freedown Sink East Staffal Haegr ? Baynton
Freedown Sink West Tree Cavern ? Baynton sheepdip
Freedown Sink West Staffal Haegr ? Baynton
Freedown Sink Tree Cavern ? Baynton sheepdip
Freedown Sink Staffal Haegr ? Baynton
Moormills Sink 2 Llanrhidian Rising + 7 days
Moormills Sink 1 Llanrhidian Rising + 7 days
Decoy Pond Sink Wellhead Rising + 4 days
Decoy Pond Sink Llanrhidian Rising -
Llethrid Swallet Wellhead Rising +
Llethrid Swallet top sump ?
Barns Cave Wellhead Rising +
Tooth Cave Wellhead Rising ?
Barland Quarry Sink Guthole +
Barland Quarry Sink Bishopston Valley East Rising +
Barland Quarry Sink Bishopston Valley West Rising + Lloyd fluorescein [227g] 5 days
Murton Stream Sink Caswell Bay West Rising + Baynton fluorescein [28g] 5-6 days
Caswell Valley Sink Caswell Bay East Rising + Baynton fluorescein (28g) [1965] 5-6 days
Caswell Valley Sink Caswell Bay East Rising + 3 days
Newton Stream Sink Caswell Bay East Rising + Baynton fluorescein (28g) [1965] 3 days
Newton Stream Sink Caswell Bay East Rising + 5-6 days
Ilston Cwm Main Sink Trinity Well Rising - Baynton fluorescein (50g)
Ilston Cwm Main Sink Trinity Well Rising - Baynton fluorescein (100g)
Willoxton depression Wellhead Rising ?
Truckhill Sink Truckhill Cave Resurgence ?
Truckhill Minor Sink Truckhill Cave Resurgence ?
Oreton Quarry Sink Truckhill Cave Resurgence ?
Foxholes Main Sink Truckhill Cave Resurgence ?
Dinorben Farm Sink St George Cave ?
Old Quarry Dulas Resurgence + Env.Agency dye 2010 38 hrs
Dell Cave Afon Meirchion Cave (Lower) + SMCC 1965
Fourteen Swallets Main Rising ?
Brynglas Sink Ffynnon Asaph ?
Ogof Cefn-y-Gist Ogof Llyn Parc +
Ogof Cefn-y-Gist Ffynnon Wen + historic
Lodge Farm Swallow Ogof Ewenol ?
Ogof Rhewl Ffynnon Ddyfnog + ochre
Ty Mawr Reservoir Sink Ffynnon Ddyfnog +
Siamber Wen Sink Cave Siamber Wen Spring +
Caerwys Sink St Michaels Well ?
Ogof Hesp Alyn Milwr Tunnel ?
Nant Gain Cave 8 Pont Newydd Rising ?
Hendre Fawr Sinks Ffynnon Asaph ?
Gas Pot Ogof Llyn Parc +
Park Farm Cave Ogof Llyn Parc +
Wet Sink Ffynnon Sion Sieffre + Gascoine <2 days
Ogof Carno Southern Discomfort sump +
Ogof Carno Ffynnon Gisfaen Resugence 1 +
Ogof Pont Gam Ogof Nant Rhin ?
Twll Clogfaen Ogof Pont-y-Meirw + Donovan
Ogof Cil Sanws Ogof Sanws + Morgan
Taf Fawr Cave 2 Pwll Taf + Davies dye 1965
Old Quarry Sink Vaynor Church Risings ?
Old Quarry Sink Ogof Rhyd Sych - 1960s
Sink upstream of Ogof Rhyd Sych Ogof Psgodyn Gwyn ?
Nant Glais streambed OyC upstream ?
Ogof Tee Ogof Sanws + Morgan 2000 5 hrs
Ogof Sanws + Morgan <6 hrs
Cefn Coed Rising 1 - Morgan
Ogof Sanws + Morgan <6 hrs
Cefn Coed Rising 1 - Morgan
Ogof Sanws + Morgan <6 hrs
Cefn Coed Rising 1 - Morgan
Black Rock Springs Rising ?
Waterfall Cave Waterfall Cave Resurgence ?
Pwll Coedog stream + Gascoine 24 hrs
Ogof Craig a Ffynnon Ogof Capel + Gascoine 4-6 hrs
Ogof Craig a Ffynnon Limekiln Resurgence + Gascoine 4-6 hrs
Ogof Craig a Ffynnon Ogof Capel + Gascoine 26 hrs
Ogof Craig a Ffynnon Limekiln Resurgence + Gascoine 26 hrs
Ogof Craig a Ffynnon Blaen Elin ?
Ogof Craig a Ffynnon North West Inlet (north) + Gascoine 6 hrs
Ogof Craig a Ffynnon Limekiln Resurgence + Gascoine <24 hrs
Ogof Craig a Ffynnon Ogof Capel + Gascoine <24 hrs
Ogof Craig a Ffynnon Limekiln Resurgence + Gascoine <24 hrs
Ogof Craig a Ffynnon Blaen Elin - Gascoine
Ogof Craig a Ffynnon Ogof Capel + Gascoine 24-30 hrs
Ogof Craig a Ffynnon Blaen Elin - Gascoine
Ogof Craig a Ffynnon Rock and Fountain Spring + Gascoine 6 hrs
Sink over Epocalypse Ogof Craig a Ffynnon + Gascoine 1985
Sink over Epocalypse - Gascoine 1985
Ogof Draenen Tumble Resurgence Cave ? Gascoine fluorescein 1994
Ogof Draenen Ogof Tarddiad Pwll Du - Rising ? Gascoine fluorescein (100g) 1994
Ogof Draenen Clydach South Resurgence 2 +
Ogof Draenen Snatchwood Risings +
Ogof Draenen Pontnewynydd Springs +
Ogof Draenen Roadside Spring -
Ogof Draenen -
Ogof Draenen Denbridge Road spring 1 - Gascoine 1985
Ogof Draenen Denbridge Road spring 2 - Gascoine 1985
Ogof Draenen Snatchwood Risings ?
Ogof Draenen Pontnewynydd Springs ?
Ogof Draenen Denbridge Road spring 1 -
Ogof Draenen Denbridge Road spring 2 -
Ogof Draenen Snatchwood Risings +
Ogof Draenen Pontnewynydd Springs +
Ogof Draenen Roadside Spring -
Ogof Draenen -
Ogof Draenen Denbridge Road spring 1 -
Ogof Draenen Denbridge Road spring 2 -
Ogof Draenen Out of the Blue +
Ogof Tarddiad Pwll Du Ogof Tarddiad Pwll Du - Rising + France
Ogof Tarddiad Pwll Du Upstream Passage spout inlet + France
Penlanfach Sink Ogof Rhaeadr Ddu ?
Carn Y Gorfydd Sink 2 Agent Blorenge 2 + Gascoine fluorescein (150g) 1995 <7 days
Carn Y Gorfydd Sink 2 Tumble Resurgence 1 - Gascoine fluorescein (150g) 1995 <7 days
Pot with Stream Tumble Resurgence 1 + Gascoine fluorescein (100g) 1995 <2 days
Pen-y-Galchen Sink Ogof Tarddiad Pwll Du - Rising ?
Pwll Gilwern Clydach South Resurgence ? Gascoine
Gilwern Hill Sink Bach White Arch + Gascoine fluorescein (100g) 1994 <2 hrs
Gilwern Hill Sink Mawr White Arch + Gascoine fluorescein (100g) 1994 <2 hrs
Tarquin Hole Shakespeare's Cave ?
Llanelly Quarry Pot Sink Midsummer Nights Dream inlet + <24 hrs
Ogof Waun-rydd Ogof Blaen Crawnon ?
Odyn Fach Sink Main Sink Blaen Rhymney Resurgence + Gascoine 1980 24 hrs
Odyn Fach Sink 1 Blaen Rhymney Resurgence + Gascoine 1980 24 hrs
Odyn Fach Sink 3 Blaen Rhymney Resurgence + Gascoine 1980 24 hrs
Ogof Ap Robert Ffynnon Sion Sieffre + <48 hrs
Derek's Dig Ffynnon Sion Sieffre + <48 hrs
Ogof Llwynog Boulder rising +
Crescent Cave Ffynnon Sion Sieffre + Gascoine 1980 48 hrs
Ogof Cynnes Ffynnon Gisfaen Resugence 1 ?
Blaen Onneu Quarry Pot Ffynnon Gisfaen Resugence 1 + Lycopodium <6 days
Crochan Sion Hopcyn Remembrance Series +
Crochan Sion Hopcyn Remembrance Series - 1991
Cascade Sink Cascade Inlet top ? CSS
Pwll Coch Ffynnon Gisfaen Resugence 1 + 1980 48 hrs
Pwll y Pasg Coal Cellar Chamber + Gascoine <4 hrs
Waen Rudd Swallet Flood Passage ?
Pwll-y-Gwynt Second Choke + Gascoine 4 hrs
Llangattock Swallet Pwll-y-Cwm + Gascoine fluorescein 1980 2 days
Llangattock Swallet Seventh Hour Sump + fluorescein 1985 20 hrs
Agen Allwedd Draught Passsage + Holmes rhodamine 1961
Agen Allwedd North West Junction ?
Agen Allwedd Southern Stream 1st inlet +
Agen Allwedd Southern Stream 1st inlet + Holmes rhodamine 1961
Agen Allwedd Pwll-y-Cwm + Holmes rhodamine (100g) 1961 <7 days
Agen Allwedd Pwll-y-Cwm + Davies Durasol Orange (4.5kg) 1961 <7 days
Agen Allwedd Terminal Sump - Gascoine
Peaty Pool Stream Passsage + Holmes peat 1963
Ogof y Darren Cilau The Kitchen +
Ogof y Darren Cilau Epocalypse Choke +
Ogof y Darren Cilau Crystal Inlet +
Ogof y Darren Cilau St Davids Sump +
Pen Eryr streams Antler Passage +
A Sink on the Moor Ace of Spades + Gascoine ~2 days
Twll y Cadno North West Inlet (north) ?
Ogof Tarddiad Rhymney Blaen Rhymney Resurgence + Gascoine Lycopodium
Pant Serthfa Sink Claisfer Resurgence ?
Pant Serthfa Sink 2 Claisfer Resurgence ?
Pant Serthfa Sink 3 Claisfer Resurgence ?
Eglwys Faen Ace of Spades +
Eglwys Faen stream + Gascoine Lycopodium (1kg) 1985/6 3 days
Eglwys Faen Pwll-y-Cwm + Gascoine Lycopodium (1kg) 1985/6 3 days
Eglwys Faen Limekiln Resurgence + Gascoine Lycopodium (1kg) 1985/6 2 weeks
Eglwys Faen Ogof Craig a Ffynnon + Gascoine Lycopodium (600g) 1985/6 72hrs
Eglwys Faen stream + Gascoine Lycopodium (600g) 1985/6 72hrs
Ogof Pwll Maelor Snatchwood Risings + Gascoine dye 100 hrs
Ogof Dail Pridd Cwmavon Risings + Gascoine fluorescein (50-100g) <4 hrs
Ogof Dail Pridd Nant Maelor Risings + Gascoine fluorescein (50-100g)
Cuckoo Pot Cwmavon Reservoir Risings + Gascoine fluorescein (50-100g) <24 hrs
Cuckoo Pot Cwmavon Risings + Gascoine fluorescein (50-100g) <24 hrs
Ogof Wenog Cwmavon Risings + Gascoine fluorescein (50-100g) 4 hrs
Ogof Wenog Nant Maelor Risings + Gascoine fluorescein (50-100g) 4 hrs
Nant Maelor Tunnel Resurgence + BCC fluorescein 1972
Nant Maelor Tunnel 2 Resurgence + BCC fluorescein 1972
Pen Lasgarn Sink Pontnewynydd Field Resurgence + Gascoine fluorescein (50-100g) <48 hrs
Pen Lasgarn Sink Stones ?
Pen Lasgarn Sink Pontnewynydd Springs - Gascoine fluorescein (50-100g)
Pant-y-Gollen Sink Pontnewynydd Field Resurgence ?
Bouncing Field Snatchwood Risings + Gascoine fluorescein (200g) 1995 <3 days
Bouncing Field Pontnewynydd Springs + Gascoine fluorescein (200g) 1995 <3 days
Sink Nant Maelor Risings + Gascoine fluorescein (50-100g) 5 hrs
Garn Clochdy Sink Nant Maelor Risings + Gascoine fluorescein (50-100g) <24 hrs
Sinc Twmbarlwm Rhododendron Resurgence ?
Nant Byfre Sink Gwyn Arms Rising + Jenkins fluorescein (227g) 1956 15 hrs
Ogof-yr-Ardd Pen Twyn Farm Resurgence ?
The Horseless Carriage Dig Cwm Dwr Jama +
Cwm Dwr 2 Cwm Dwr Jama +
Cwm Dwr Cwm Dwr Confluence + Smart fluorescein 1976 20 hrs
Cwm Dwr Cwm Dwr Confluence + Smart OB 1976 20 hrs
Cwm Dwr Cwm Dwr Confluence + Smart rhodamine 1976 20 hrs
Cwm Dwr Splash Inlet + Smart fluorescein 1976
Cwm Dwr Splash Inlet + Smart OB 1976
Cwm Dwr Splash Inlet + Smart rhodamine 1976
Cwm Dwr Waterfall Series + Smart fluorescein 1976
Cwm Dwr Waterfall Series + Smart OB 1976
Cwm Dwr Waterfall Series + Smart rhodamine 1976
Cwm Dwr Cwm Dwr Confluence + Smart fluorescein 1976 20 hrs
Cwm Dwr Cwm Dwr Confluence + Smart OB 1976 20 hrs
Cwm Dwr Cwm Dwr Confluence + Smart rhodamine 1976 20 hrs
Cwm Dwr Splash Inlet + Smart fluorescein 1976
Cwm Dwr Splash Inlet + Smart OB 1976
Cwm Dwr Splash Inlet + Smart rhodamine 1976
Cwm Dwr Waterfall Series + Smart fluorescein 1976
Cwm Dwr Waterfall Series + Smart OB 1976
Cwm Dwr Waterfall Series + Smart rhodamine 1976
Twll Gwynt Oer Cwm Dwr Jama ?
Top Entrance Top Waterfall ?
Pwll Byfre Ffynnon Ddu + Harvey fluorescein 1948
Pwll Byfre Hush Sump + Baynton fluorescein [1963] 18 hrs
Pwll Byfre Smiths Armoury + dye
Ogof Carreg Cadno Pant Mawr Resurgence R1 + Morgan dye 2006
Heather Hole Pant Mawr Resurgence R1 + Morgan 2003
Pant Mawr Pot Pant Mawr Resurgence R1 + Harvey fluorescein (5lb) 1951 5 days
Pant Mawr Sink Pant Mawr Pot + 5 days
Ogof o Flaen-y-Waun sump - WSG Lycopodium 1993 7 days
Ogof o Flaen-y-Waun Little Neath River Cave Resurgence R2 - WSG Lycopodium 1993 16 days
Ogof o Flaen-y-Waun Pant Mawr Resurgence R1 - WSG Lycopodium 1993 16 days
Ogof Cul No 1 Afon Nedd Fechan upstream of Bridge + Young fluorescein (100g) 1985 <24 hrs
Ogof Cul No 1 Little Neath River Cave Resurgence R2 + 25-50 hrs
Ogof Cul No 1 Terminal Sump -
Ogof Cul No 1 North East Inlet - Young 1984 48 hrs
Ogof Cul No 1 Tributary Passage - Young 1986 <30 hrs
Ogof Cul No 1 Mainstream Passage - Young 1986 <30 hrs
Ogof Cul No 1 Little Neath River Cave Resurgence R2 + Gascoine Lycopodium (400g) 1984 24-48 hrs
Ogof Cul No 1 Little Neath River Cave Resurgence R2 + Gascoine Lycopodium (400g) 1984 <72 hrs
Ogof Cul No 1 Blaen Nedd Isaf + Gascoine fluorescein (250g) 1985
Ogof Cul No 1 Little River Neath Lesser Sink North + Gascoine fluorescein 1984 <24 hrs
Ogof Cul No 1 Little Neath River Cave Resurgence R2 - Young fluorescein (450g) 1984 10 days
Ogof Cul No 1 Pant Mawr Resurgence R1 - Young fluorescein (450g) 1984 10 days
Ogof Cul No 1 Blaen Nedd Isaf Resurgence - Gascoine Lycopodium (400g) 1984 4 days
Ogof Cul No 1 White Lady Cave - Gascoine Lycopodium (400g) 1984 <3 days
Eighteenth Hole Pwll Ddu + UBSS fluorescein (2kg) 1968 <36 hrs
Productus Pot Pant Mawr Resurgence R1 + Young Lycopodium (400g) 1984 <25 hrs
Blaen Nedd Uchaf Sink Blaen Nedd Uchaf Resurgence + <1 hr
Lewis's Pot Blaen Nedd Uchaf Resurgence ?
Blaen Nedd Uchaf Swallet Blaen Nedd Uchaf Resurgence ?
Sarn Helen Sink North Pant Mawr Resurgence R1 + 25-50 hrs
Pwll Derwen Pant Mawr Resurgence R1 + Gascoine Lycopodium (400g) 1984 <25 hrs
Sarn Helen Sink South Pant Mawr Resurgence R1 + <25-50 hrs
Ogof Igam Ogam Pant Mawr Resurgence R1 + Morgan 2002 <24 hrs
Ogof Pwll-y-Rhyd Ogof Gwdihw + UBSS fluorescein 1981 <5 days
Little River Neath Lesser Sink North Terminal Sump +
Bridge Cave Little Neath River Cave Resurgence R2 + UBSS fluorescein (2kg) 1968 <36 hrs
Bridge Cave Pwll Ddu + UBSS fluorescein (2kg) 1968 <36 hrs
Little Neath River Cave Flood Entrance Little Neath River Cave Resurgence R2 +
Berthlwyd Swallet Foot and Mouth Passage + UBSS fluorescein
Pwll y Ffordd Cave Sump 5 + UBSS
Sink Pant y Llwyn Rising West ?
The Hole by the Wall Little Neath River Cave Resurgence R2 + Young 1985 <21 hrs
The Hole by the Wall Porth Yr Ogof Rising 2 ? Young 1985 <24 hrs
Plas y Darren Pot Nedd Fechan below all known resurgences - Young Lycopodium (400g) 1985
Plas y Darren Pot Mellte below all known resurgences - Young Lycopodium (400g) 1985
COTMV60 Nedd Fechan below all known resurgences - Young Lycopodium (400g) 1985
COTMV60 Mellte below all known resurgences - Young Lycopodium (400g) 1985
Borehole Spring - COTMV36 + Morgan OB 2007
COTMV23 COTMV26 ?
Cwm Porth Caverns (d) Ogof Glan Mellte -
Cwm Porth Caverns (d) COTMV26 + UBSS
Cwm Porth Caverns (d) Spring - COTMV25 + UBSS
Church Sink Porth yr Ogof - Resurgence ?
Morgan's Hole Porth Yr Ogof - Entrance C + Young fluorescein (100g) 1985 <19 hrs
Ogof Ffynnon Cwm Porth Inlet + dye
Pwll Coed y Rhaiadr Ogof Ffynnon ?
Pwll Derw Hepste Main Resurgence + UBSS 1982
Pwll Derw Tir-Duweunydd South Sink - Morgan OB ~2011
Hepste Bridge Sinks Hepste Main Resurgence +
Tir-Duweunydd Well Cave Tir-Duweunydd Well -
Upper Hepste Tir-Mawr Sink Hepste River Cave Western Branch + UBSS 1970s <24 hrs
Upper Hepste Tir-Mawr Sink Hepste River Cave Eastern Branch + UBSS 1970s <24 hrs
Blaen Hepste Hole Blaen Hepste Resurgence ?
Upper Hepste, Tir-yr-Onnen Sink Upper Hepste Resurgence Cave ?
Shakehole Dig Pen Twyn Farm Resurgence ?
Ogof Cul 5 Pant Mawr Resurgence R1 + Morgan dye 2006
Ogof Cul 5a Pant Mawr Resurgence R1 + Morgan dye 2006
Will's Hole Pont Sychryd Resurgence + SWCC visual [1963]
Ogof Coed y Ffyrnau Upstream + SWCC discolouration [1963]
Pant Cefn-y-Ffordd Sink Tor y Foel Spring - Morgan OB
Pant Cefn-y-Ffordd Sink Llygad Cynon ? Morgan OB
Bodwigiad Pot Llygad Cynon - Morgan OB 1999
Ogof Fechan Llygad Cynon ?
Ogof yr Uwd Lwyd Ogof Afon Hepste + Morgan OB ~2004 < 24 hrs
Ogof yr Uwd Lwyd Moss Risings - Morgan OB ~2004
Ogof Fawr Llygad Cynon + sawdust 1910
Ogof Fawr Llygad Cynon + ? fluorescein 1973
Stream end Llygad Cynon +
Boundary Wall Sink Llygad Cynon + Morgan OB 1999 <3 days
Boundary Wall Sink Stream inlet ?
Onllwyn Forest Sink E Llygad Cynon ? Morgan OB 1999
Onllwyn Forest Sink E Ogof Pont-y-Meirw - Morgan OB 1999
Mynydd Y Glog Shakehole sink 2 Llygad Cynon + Morgan OB 1999 <18 hrs
Twin sink and dig Moss Risings ?
Twin Sink Moss Risings ?
Pal-y-Cwrt Llygad Llwchwr +
Sinc Y Pant Llygad Llwchwr ?
Pwll Cwm Sych Llygad Llwchwr + Gascoine Lycopodium (1kg) 1982 <3 days
Ogof y Nant Llygad Llwchwr ?
Sinc Ger y Ffordd Llygad Llwchwr + Gascoine Lycopodium (1kg) 1982 4-7 days
Ogof Foel Fawr Llygad Llwchwr + Rogers dye 1984
Sink Llygad Llwchwr - Gascoine 1982
Sink Ffrydiau Twrch Resurgence - Gascoine 1982
Llynfell Pot Ffrydiau Twrch Resurgence + Hartwright?
Llynfell Pot Ffrydiau Twrch Resurgence + Gascoine Lycopodium (1kg) 1982 <4 days
Ogof Pwll Swnd Ffrydiau Twrch Resurgence + Hartwright 1974
Ogof Y Garimpeiros Ffrwd Las Resurgence + Rogers 1996 <24 hrs
Ogof Y Garimpeiros Ffrydiau Twrch Resurgence -
Carreg Yr Ogof Sink 3 Ffrwd Las Resurgence + fluorescein 1970s
Carreg Yr Ogof Sink 3 Ffrwd Las Resurgence + Gascoine Lycopodium 1980s 4 days
Bwlch Y Ddeuwynt Sink Ffrwd Las Resurgence + Rogers 1991
Ogof Diwedd Yr Enfys Dan-yr-Ogof ? Gascoine 1982
Ogof Diwedd Yr Enfys Ffrwd Las Resurgence ? Gascoine 1982
Ogof Diwedd Yr Enfys Ffrwd Las Resurgence + Rogers 1991
Banwen Gwys Sink Dan-yr-Ogof - Lycopodium
Banwen Gwys Sink Ffrwd Las Resurgence - Lycopodium
Ogof Carreg Lem Dan-yr-Ogof + Gascoine Lycopodium 1982 48 hrs
Ogof Carreg Lem Mazeways ?
Ogof Twyn Tal-Draenen Dan-yr-Ogof + Gascoine Lycopodium 1982 48 hrs
Sinc y Giedd - Sink 3 Dan-yr-Ogof + turbidity <1809 24 hrs
Sinc y Giedd - Sink 3 Mazeways + Harvey 1948 50 hrs
Sinc y Giedd - Sink 3 Mazeways + Coase 1970 36 hrs
Roaring Hole Washing Machine + Rogers fluorescein ~1992
Roaring Hole Great North Road - Rogers fluorescein ~1992
Sinc Ddu Upstream ?
Rumbling Rift Upstream ?
Greenstick Sink Ebbing and Flowing Spring + Laverty 1 hr
Coral Beds Sink Upstream ?
Lost Valley Sink Dan-yr-Ogof + Gascoine Lycopodium 1982 2 days
Lost Valley Sink Mazeways ?
Swallow Hole Dan-yr-Ogof +
Cribarth Sink Hospital Cave + <7 days
Waun Fignen Felen Main Sink Great North Road + Hunt 1963 (1?)8 hrs
Waun Fignen Felen Main Sink Great North Road + Coase 1968 14 hrs
Waun Fignen Felen Main Sink Great North Road + Coase 1970 8 hrs
Pwll Y Wydden Sink Dan-yr-Ogof + 1960s
Pwll Dwfn Dan-yr-Ogof + 1960s 91 hrs
Pwll Dwfn Washing Machine + Coase dye 1968 5 days
Dan-yr-Ogof Sump +
Dan-yr-Ogof Lake 7 ?
Dan-yr-Ogof Dan-yr-Ogof +
Sink in Waun Fignen Felin Upstream ?
Ogof Giedd Dan-yr-Ogof ?
Merthyr Mawr Sinks Schwyll Risings + WWA bacteriophage 1989 10 hrs
Merthyr Mawr Sinks Merthyr Mawr Mill Leat Spring + WWA bacteriophage 1989 4 hrs
Merthyr Mawr Caves Merthyrmawr Pothole ?
Merthyrmawr Pothole Merthyr Mawr Village Resurgence ?
M4 Sink at Heol Las Borehole near River Ewenny + WRC fluorescein (25 kg) 1988 21 hrs
M4 Sink at Heol Las Byeastwood Springs + WRC fluorescein (25 kg) 1988
Tymaen Sink Schwyll Risings + WRC fluorescein 1988 5 hrs
Llanfair Discoed 2 St Brides Mill Spring ?
Llanfair Discoed 2 Severn Tunnel Great Spring ?
Cas Troggy Severn Tunnel Great Spring +
Dinham Crick Spring ?
Nedern Brook Severn Tunnel Great Spring ?
Itton North Swallet Tunnels Left + EPC 1978
Itton North Swallet Tunnels Left + HCC 1994 <13 days
Itton North Swallet Sump 2 + HCC 1994 <11 days
Itton North Swallet Well Head - HCC 1994
Itton North Swallet Chepstow Castle Spring - HCC 1994
Tredegar Woods South Sink Crick Spring ?
Itton South Sink Tunnels Left +
Itton South Sink Tunnels Left ? HCC 1994 67 days
Itton South Sink Sump 2 ? HCC 1994 24 days
Itton South Sink Itton North Swallet - HCC 1994 7 days
Little Grondra Crick Spring ?
Tredegar Wood North Sink Crick Spring ?
Croes Bleddyn Swallet Tunnels Left ?
Llanquilan Quarry Sink Tunnels Left + HCC 1977 <5 days
Llanquilan Quarry Sink Inlet passage ?
Mounton Brook Site 1 Well Head + UBSS 1972
Rug's Hole Well Head ? Murchison 1839
Rogerstone Grange Mill Sink Sump 2 ?
Rogerstone Grange Mill Sink Tunnels Left ?
St.Arvans Lower Sink Sump 2 + UBSS fluorescein 1977 <15 days
St.Arvans Lower Sink Tunnels Left - UBSS fluorescein 1977 <15 days
St.Arvans Main Sink Sump 2 + UBSS fluorescein 1977 <18 days
St.Arvans Main Sink Tunnels Left - UBSS fluorescein 1977 <18 days
Tunnels Left Sump 2 + RFDCC fluorescein < 6 days
Camp 1 Sump 2 + fluorescein
Tidal Sump Otter Hole Resurgence ?
St Arvans Water Treatment Plant Camp 1 ?
St Arvans Water Treatment Plant Sump 2 + HCC 2011 <60 days
St Arvans Water Treatment Plant Sump 2 + HCC 2012 <3 days
St Arvans Water Treatment Plant Camp 1 + HCC 2012 <3 days
St Arvans Sink St Arvans Water Treatment Plant +
Piccadilly Pot Otter Hole Resurgence ?
Doline St Brides Mill Spring ?
Penhow Sink St Brides Mill Spring ?
Whitebrook Sink St Brides Mill Spring ?
River Ogmore M4 Sink Schwyll Risings + WWA bacteriophage 1989 23 hrs
River Ogmore Sink Schwyll Risings + WWA bacteriophage 1986 11 hrs
River Ewenny Fach Schwyll Risings + WWA bacteriophage 1989
River Ewenny Fach Schwyll Risings - WRC fluorescein (7 kg) 1988
River Ewenny Fach Schwyll Risings - WRC fluorescein (14 kg) 1988
Marros sink Ragwen Point Resurgence ?
Ogof Marros Ragwen Point Resurgence ?
Greenbridge Cave Ragwen Point Resurgence + map 1750
Sinc Aled Capel Hirbach Resurgence ?
Ogof Craig Ddu Ogof Craig Ddu resurgence ?
Capel Dyddgen Sink Capel Dyddgen Resurgence ?
Sinc Llinos Ffynnon Carreg Gwenlais ?
Gelli-helog Sink Ragwen Point Resurgence ?
Manorbier Flood Sink Manorbier Resurgence ?
Lydstep Sink Lydstep Resurgence ?