| WORLDS LONGEST CAVES Compiled by: Bob Gulden - January 29, 2012 | |||||||||||
| CAVES WITH TOTAL LENGTH OF 15000+ METERS (9.321 miles, 49,213 feet) | |||||||||||
| Send updates and corrections to caverbob@aol.com | |||||||||||
| The NSS Geo2 Long & Deep Caves Web Site is at http://www.caverbob.com Copyright 2011 NSS Geo2, Bob Gulden NSS#13188LF | |||||||||||
| Do not ask for cave locations, I will not give them out. | |||||||||||
| LENGTH | LENGTH | DEPTH | DEPTH | ||||||||
| # | CAVE NAME | COUNTRY | STATE | COUNTY | MILES | METERS | FEET | METERS | SOURCE | DATE | |
| 1 | Mammoth Cave System (N.P.) | U.S.A. | Kentucky | Ed./Hart/Bar. | 390.000 | 627644 | 379 | 115.5 | CRF / CKKC +/-5 MILES | Jul-10 | |
| 2 | Jewel Cave (N.M.) | U.S.A. | South Dakota | Custer | 157.360 | 253246 | 632 | 192.6 | http://cavingnews.com | Jan-12 | |
| 3 | Optymistychna (Gypsum) | Ukraine | Ternopil | Borshchiv | 144.158 | 232000 | 49 | 15.0 | cavemlynky@gmail.com | Feb-11 | |
| 4 | Sistema Ox Bel Ha (Under Water) | Mexico | Quintana Roo | Tulum | 139.385 | 224318 | 114 | 34.7 | QRSS Long Caves List | Jun-11 | |
| 5 | Wind Cave (N.P.) | U.S.A. | South Dakota | Custer | 137.020 | 220512 | 636 | 193.9 | Rod Horrocks e-mail | Nov-11 | |
| 6 | Sistema Sac Actun (Nohoch Nah Chich) (Dry & Under Water) | Mexico | Quintana Roo | Tulum | 135.063 | 217363 | 255 | 77.6 | QRSS Long Caves List | Feb-11 | |
| 7 | Sistema Sac Actun (Nohoch Nah Chich) (Under Water) | Mexico | Quintana Roo | Tulum | 133.748 | 215246 | 235 | 71.6 | QRSS Long Caves List | Feb-11 | |
| 8 | Lechuguilla Cave (C.C.N.P.) | U.S.A. | New Mexico | Eddy | 130.240 | 209601 | 1604 | 488.9 | Stan Allison e-mail | Dec-10 | |
| 9 | Hoelloch | Switzerland | Schwyz | Muotatal | 123.150 | 198190 | 3079 | 938.6 | http://ch.speleo.info | Jun-11 | |
| 10 | The Clearwater System (Gua Air Jernih) | Malaysia | Sarawak | Mulu | 117.484 | 189072 | 1165 | 355.1 | Tim Allen e-mail | Apr-11 | |
| 11 | Fisher Ridge Cave System | U.S.A. | Kentucky | Hart | 114.100 | 183626 | 356 | 108.5 | Ronnie Harrison e-mail | Dec-10 | |
| 12 | Siebenhengste-hohgant Hoehlensystem | Switzerland | Bern | Eriz/Beat./Ha. | 97.555 | 157000 | 4396 | 1340.0 | http://ch.speleo.info | Jun-11 | |
| 13 | Schoenbergsystem (RaucherkarHoehle-Feuertal-hoehlensystem) | Austria | Oberosterreich | Totes Gebrige | 80.896 | 130190 | 3478 | 1060.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 14 | Shuanghe Dongqun | China | Guizhou | Suiyang | 79.537 | 128003 | 1946 | 593.0 | http://www.grottes-et-karsts-de-chine.org | Nov-10 | |
| 15 | Ozerna (Gypsum) | Ukraine | Ternopil | Borshchiv | 79.398 | 127779 | 115 | 35.0 | cavemlynky@gmail.com | Feb-11 | |
| 16 | Bullita Cave System (Burke's Back Yard) | Australia | Northern Territory | Gregory N.P. | 74.813 | 120400 | 75 | 23.0 | Mark Sefton (Cave Exploration Group of South Australia) | Sep-09 | |
| 17 | Sistema del Mortillano | Spain | Cantabria | Porra de Mortillano | 71.458 | 115000 | 3117 | 950.0 | Jose Luis Membrado e-mail | Aug-10 | |
| 18 | Systeme de Ojo Guarena | Spain | Burgos | Merindad de Sotoscueva | 68.351 | 110000 | 633 | 193.0 | http://www.grupoedelweiss.com/ | Sep-05 | |
| 19 | Sistema del Gandara | Spain | Cantabria | Porracolina | 66.356 | 106790 | 2671 | 814.0 | Jose Luis Membrado e-mail | Mar-11 | |
| 20 | Reseau Felix Trombe / Henne-Morte | France | Haute-Garonne | Coume Ouarnede | 65.721 | 105767 | 3199 | 975.0 | Sylvestre Clement e-mail | 01/04 | |
| 21 | Sistema del Alto Tejuelo | Spain | Cantabria | Porracolina | 65.233 | 104982 | 1985 | 605.0 | Jose Luis Membrado e-mail | Nov-11 | |
| 22 | Toca da Boa Vista | Brazil | Bahia | Campo Formoso | 63.691 | 102500 | 164 | 50.0 | www.she.com.br/cavernas_maiores.asp | Feb-07 | |
| 23 | Three Counties System | United Kingdom | Yorkshire Dales | Gragareth | 63.380 | 102000 | 692 | 211.0 | http://cavingnews.com | Nov-11 | |
| 24 | HirlatzHoehle | Austria | Oberosterreich | Dachstein | 60.674 | 97645 | 3510 | 1070.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 25 | Sistema Purificacion | Mexico | Tamaulipas | Villa Hidalgo | 58.257 | 93755 | 3127 | 953.0 | http://www.amcs-pubs.org/longanddeep.html | 06/02 | |
| 26 | Zolushka (Gypsum) | Ukraine / Moldova | Briceni/Cernivci | Nowoselyzja | 56.573 | 91045 | 98 | 30.0 | cavemlynky@gmail.com | Feb-11 | |
| 27 | Gouffre de la Pierre Saint Martin - gouffre des Partages | France / Spain | Pyrenees-Atlantiques | Pierre Saint Martin | 49.834 | 80200 | 4619 | 1408.0 | http://arsip.free.fr/index.php?option=com_content&task=view&id=76&itemid=56 | Sep-08 | |
| 28 | Friars Hole Cave System | U.S.A. | West Virginia | Green./Pocoho. | 45.539 | 73288 | 628 | 191.4 | Doug Medville | 05/03 | |
| 29 | Barenschacht | Switzerland | Bern | Beatenberg | 43.732 | 70380 | 3212 | 979.0 | http://ch.speleo.info | Jun-11 | |
| 30 | Ogof Draenen | United Kingdom | South Wales | Gwent | 43.496 | 70000 | 495 | 151.0 | www.ukcaves.co.uk/all-longest | Nov-10 | |
| 31 | Sistema Dos Ojos (Dry & Under Water) | Mexico | Quintana Roo | Tulum | 42.853 | 68965 | 409 | 124.7 | QRSS Long Caves List | Feb-11 | |
| 32 | Cova des Pas de Vallgornera | Spain | Illes Balears | llucmajor | 42.174 | 67873 | 69 | 21.0 | Tony Merino e-mail | Jan-12 | |
| 33 | Sistema Dos Ojos (Under Water) | Mexico | Quintana Roo | Tulum | 42.159 | 67849 | 391 | 119.1 | QRSS Long Caves List | Feb-11 | |
| 34 | Reseau de l'Alpe | France | Isere / Savoie | Chartreuse | 41.801 | 67272 | 2149 | 655.0 | Jose Luis Membrado e-mail | Jan-05 | |
| 35 | Schwarzmooskogelhoehlensystem-Kaninchenhohle | Austria | Steiermark | Dachstein | 41.387 | 66606 | 3379 | 1030.0 | Robert Winkler e-mail | Dec-11 | |
| 36 | Bulmer Caverns ( Castle Keep - Gormenghast) | New Zealand | South Island | Mt Owen | 41.025 | 66023 | 2477 | 755.0 | http://caves.org.nz/pmwiki.php/NZSS/Longest/Caves | Apr-10 | |
| 37 | Dachstein-MammutHoehle | Austria | Oberosterreich | Dachstein | 40.929 | 65869 | 3960 | 1207.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 38 | Kazumura Cave (Lava Tube) | U.S.A. | Hawaii | Hawaii | 40.700 | 65500 | 3614 | 1101.5 | HSS Newsletter N9P7 | 06/01 | |
| 39 | Sistema Huautla | Mexico | Oaxaca | Huautla de Ji. | 38.587 | 62099 | 4839 | 1475.0 | Ioannis Zenas via Bill Mixon via Mark Minton & Bill Stone | Apr-07 | |
| 40 | Organ Cave System | U.S.A. | West Virginia | Greenbrier | 38.452 | 61882 | 486 | 148.1 | WVASS Database | May-07 | |
| 41 | Arresteliako ziloa(Souffleur de Larrandaburu) | France | Pyre. Atlantiques/Navarra | Pierre Saint Martin | 37.868 | 60943 | 2740 | 835.0 | http://arsip.free.fr/ | Sep-08 | |
| 42 | Botovskaya | Russia | Lrkutsk | Sredne | 37.790 | 60817 | 20 | 6.0 | Alexander Osinzev e-mail | Mar-05 | |
| 43 | Cueva del Valle (Red Del Silencio) | Spain | Cantabria | Vizcaya | 37.421 | 60223 | 1565 | 477.0 | www.federacionaragonesaespeleologia.com/ | 05/04 | |
| 44 | Blue Spring Cave | U.S.A. | Tennessee | White | 37.207 | 59879 | 233 | 71.0 | Jason Riichards e-mail | Apr-11 | |
| 45 | Hellhole | U.S.A. | West Virginia | Pendleton | 37.080 | 59674 | 694 | 211.5 | Gordon Brace e-mail GVKS | Dec-11 | |
| 46 | Cenote Xunaan Ha (Dry & Under Water) | Mexico | Quintana Roo | Tulum | 36.054 | 58024 | 111 | 33.7 | QRSS Long Caves List | Feb-11 | |
| 47 | Bol'shaja Oreshnaja (Conglomerate) | Russia | Russia | Kransnojarsk | 36.040 | 58000 | 787 | 240.0 | International Caver 2000 P78 | 2001 | |
| 48 | Kap-Kutan/Promezhutochnaja | Turkmenistan | Turkistan | Gissarsko-Ala. | 35.418 | 57000 | 1017 | 310.0 | RSIC | 1996 | |
| 49 | Sistema K'oox Baal - Sistema Tux Kupaxa (Under Water) | Mexico | Quintana Roo | Tulum | 35.107 | 56500 | 86 | 26.2 | QRSS Long Caves List | Jan-12 | |
| 50 | Whigpistle System | U.S.A. | Kentucky | Edmonson | 34.620 | 55715 | 314 | 95.7 | 2009 NSS/ICS Kerrville Texas | Jul-09 | |
| 51 | Systeme du Granier | France | Isere / Savoie | Chartreuse | 34.379 | 55327 | 1850 | 564.0 | d'Eric Sibert | 02/02 | |
| 52 | Mamo Kananda | Papua New Guinea | Southern Highland | Muller Range | 34.051 | 54800 | 1732 | 528.0 | Atlas Des Grandes Cavites Mondia. | 1988 | |
| 53 | Sistema de los Cuatro (4) Valles (Hoyuca?) | Spain | Cantabria | Solorzano | 33.898 | 54554 | 328 | 100.0 | Jose Luis Membrado e-mail | Jan-12 | |
| 54 | Gr. Caverna de Palmarito | Cuba | Pinar del Rio | S. de Vinales | 33.554 | 54000 | 0 | 0.0 | Info CREI 2001 N10 | 2001 | |
| 55 | Complesso del Monte Corchia (Fighiera,Farol.) | Italy | Toscana | Alpi Apuane | 32.933 | 53000 | 3894 | 1187.0 | Jose Luis membrado e-mail | Jul-07 | |
| 56 | Wakulla-Leon Sinks Cave System (Under Water) | U.S.A. | Florida | Leon/Wakulla | 31.990 | 51483 | 350 | 106.7 | Die langsten Unterwasserhohlensysteme der welt, Oliver Knab | Jun-09 | |
| 57 | Grotte de Saint-Marcel | France | Ardeche | Bas-Vivarais | 31.814 | 51200 | 764 | 233.0 | Spelunca No.103,FFS | May-07 | |
| 58 | Benarat Caverns System (lubang Benerat) | Malaysia | Sarawak | Mulu | 31.484 | 50669 | 381 | 116.0 | Tim Allen e-mail | Mar-09 | |
| 59 | Reseau de la Dent de Crolles | France | Isere | Chartreuse | 31.131 | 50101 | 2208 | 673.0 | Jean-Yves Bigot | 01/04 | |
| 60 | Ogof Ffynnon Ddu | United Kingdom | South Wales | Swansea Valley | 31.069 | 50000 | 1010 | 308.0 | www.ukcaves.co.uk/all-longest | Nov-10 | |
| 61 | Cenote Xunaan Ha | Mexico | Quintana Roo | Tulum | 30.997 | 49885 | 89 | 27.1 | QRSS Long Caves List | Feb-11 | |
| 62 | Sima del Hayal de Ponata (SI-44,SI-57,SR-7) | Spain | Alava/Vizcaya | Orduna | 30.447 | 49000 | 1362 | 415.0 | Enrique Fernandez e-mail | 05/05 | |
| 63 | Crevice Cave | U.S.A. | Missouri | Perry | 29.600 | 47637 | 0 | 0 | M.S.S. Paul Hauck | Mar-11 | |
| 64 | Scott Hollow Cave | U.S.A. | West Virginia | Monroe | 29.500 | 47476 | 571 | 174.0 | WVASS Spring Meeting | May-09 | |
| 65 | Kipuka Kanohina (Kula Kai Caverns) (Lava Tube) | U.S.A. | Hawaii | Hawaii | 28.700 | 46188 | 762 | 232.3 | Bob Richards e-mail | Mar-11 | |
| 66 | Santo Tomas (gran caverna de) | Cuba | Pinar del Rio | S. de Quemadas | 28.583 | 46000 | 0 | 0.0 | The NSS News V57N10P300 | 10/99 | |
| 67 | Grotte de la Diau | France | Haute Savoie | Parmelan | 27.962 | 45000 | 2297 | 700.0 | Bertrand Hauser | Dec-11 | |
| 68 | Sistema Aranonera (Sima S1-S2)(Tendenera connected) | Spain | Huesca | Pirineos | 27.764 | 44682 | 4426 | 1349.0 | Jose Luis Membrado e-mail | Sep-11 | |
| 69 | Kolkbluser-Monster-Hoehlensystem | Austria | Salzburg | Steinernes Meer | 27.643 | 44487 | 2372 | 723.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 70 | Binkley's Cave System | U.S.A. | Indiana | Harrison | 27.620 | 44450 | 140 | 42.7 | Gary Roberson e-mail | Dec-12 | |
| 71 | Cumberland Caverns (Saltpeter) | U.S.A. | Tennessee | Warren | 27.616 | 44444 | 200 | 61.0 | Charles Cole | 03/92 | |
| 72 | Carlsbad Cavern (C.C.N.P.) | U.S.A. | New Mexico | Eddy | 27.530 | 44305 | 1035 | 315.5 | Stan Allison e-mail | Feb-08 | |
| 73 | Trou qui souffle | France | Isere | Vercors | 26.657 | 42900 | 2198 | 670.0 | Jean-Yves Bigot | 01/04 | |
| 74 | Pestera Vantului | Romania | Bihor | Mtii Padurea Craiului | 26.200 | 42165 | 558 | 170.0 | Victor Ursu info - 34-52km in length | Sep-10 | |
| 75 | Omega System | U.S.A. | Virginia | Wise | 26.200 | 42165 | 1263 | 385.0 | Benjamin Schwartz e-mail | Dec-10 | |
| 76 | Eisriesenwelt | Austria | Salzburg | Tennengebirge | 26.098 | 42000 | 1335 | 407.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 77 | Gouffre de Padirac | France | Lot | Causse de Gramat | 25.476 | 41000 | 853 | 260.0 | http://www.gouffre-de-padirac.com/index.htm | Jun-10 | |
| 78 | Mlynky (Ml'inki ) (Gypsum) | Ukraine | Ternopil | Chortkiv | 25.476 | 41000 | 66 | 20.0 | cavemlynky@gmail.com | Feb-11 | |
| 79 | Cueva del Tecolote | Mexico | Tamaulipas | Villa Hidalgo | 25.150 | 40475 | 1391 | 424.0 | Mark Minton e-mail | 05/05 | |
| 80 | Fornitori-Stoppani | Italy | Lombardia | Pian del Tivano | 25.041 | 40300 | 1457 | 444.0 | Andrea Maconi e-mail | Nov-09 | |
| 81 | Scialet de les Nuits Blanches | France | Isere | Vercors | 24.855 | 40000 | 3497 | 1066.0 | http://speleo.blogspot.com/ | Sep-08 | |
| 82 | Sloans Valley Cave System | U.S.A. | Kentucky | Pulaski | 24.640 | 39654 | 240 | 73.2 | The International Caver N19P23 | 05/97 | |
| 83 | System Amaterskej a Punkevni Jesky. | Czech Rep. | Moravia | Ostrov | 24.324 | 39146 | 1631 | 497.0 | Libor Faitl e-mail | Jan-12 | |
| 84 | Chiquibul Cave System (Cebaba & Actun Tunkul) | Belize | Mt Junea West | Chiquibul | 24.233 | 39000 | 525 | 160.0 | Tom Miller e-mail | 01/02 | |
| 85 | Jiangzhou Dongxuexitong | China | Guangxi | Fengshan | 23.923 | 38500 | 492 | 150.0 | www.hongmeigui.net/deepandlong.php | Apr-08 | |
| 86 | Silberensystem (Schwyzerschacht) | Switzerland | Schwyz | Muotatal | 23.845 | 38375 | 2915 | 888.4 | http://ch.speleo.info | Jun-11 | |
| 87 | Xanadu Cave System | U.S.A. | Tennessee | Fentress | 23.799 | 38301 | 230 | 70.1 | Tenn.Cave Survey | 02/03 | |
| 88 | Lamprechtsofen Vogelschacht Weg Schacht | Austria | Salzburg | Loferer Steinberge | 23.612 | 38000 | 5354 | 1632.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 89 | Sistema de Pan de Azucar | Cuba | Pinar del Rio | S.del Rosario | 23.612 | 38000 | 0 | 0.0 | The NSS News V57N10P300 | 10/99 | |
| 90 | Sistema Cuetzalan - Atepolihuit | Mexico | Puebla | Curtzalan | 23.411 | 37676 | 2159 | 658.0 | Mark Minton e-mail | 06/02 | |
| 91 | Grotte de la Luire | France | Drome | Vercors | 23.341 | 37563 | 1795 | 547.0 | The International Caver #24 P36 | 1999 | |
| 92 | The Hole (Boggs Cave) | U.S.A. | West Virginia | Greenbrier | 23.003 | 37020 | 225 | 68.6 | Bill Balfour | 09/91 | |
| 93 | Er Wang Dong | China | Chongqing | Wulong | 22.825 | 36734 | 1447 | 441.0 | Erin Lynch e-mail | Aug-09 | |
| 94 | Sistemul Humpleu-Poienita | Romania | Cluj | Mtii Bihor | 22.742 | 36600 | 1030 | 314.0 | Victor Ursu e-mal | Nov-10 | |
| 95 | Coral Cave System | U.S.A. | Kentucky | Pulaski | 22.560 | 36307 | 340 | 103.6 | Lee Florea e-mail | 12/02 | |
| 96 | Sistema de Atxuriaga (Complex) | Spain | Bizkaia | Galdames | 22.538 | 36271 | 1729 | 527.0 | Jose Luis Membrado e-mail | Jan-11 | |
| 97 | Sugar Run Cave System | U.S.A. | Virginia | Giles | 22.500 | 36210 | 718 | 218.8 | VSS Long & Deep Cave Lists | 02/03 | |
| 98 | Complesso di Piaggia Bella | Italy | Piemonte | Marguareis | 22.059 | 35500 | 3153 | 961.0 | http://www.Class.del.g.piulunghe/profon.d'Italia | 1996 | |
| 99 | Qikengdong (Tianxing Dongxuexitong)(Misty River Cave) | China | Tianxing | Wulong | 22.046 | 35479 | 3346 | 1020.0 | Erin Lynch e-mail | Aug-09 | |
| 100 | Demanovsky jaskynny system | Slovakia | Nizke Tatry | Demanovske vrchy | 21.970 | 35358 | 571 | 174.0 | www.drienka.host.sk/najdlhsie.php | Jan-12 | |
| 101 | Reseau Andre Lachambre (grotte d'Embulla) | France | Pyrenees-Orientales | Conflent | 21.748 | 35000 | 243 | 74.0 | D'apres Christophe Levillain | 2003 | |
| 102 | San Wang Dong | China | Chongqing | Wulong | 21.603 | 34767 | 984 | 300.0 | http://www.grottes-et-karsts-de-chine.org | Nov-10 | |
| 103 | TantalHoehle | Austria | Salzburg | Hagengebirge | 21.539 | 34664 | 1427 | 435.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 104 | Lilburn Cave (N.P.) | U.S.A. | California | Tulare | 21.516 | 34627 | 508 | 154.8 | Jed Mosenfelder e-mail | Jan-11 | |
| 105 | Atea Kananda | Papua New Guinea | Southern Highland | Muller Range | 21.437 | 34500 | 1148 | 350.0 | The British Caver V94-95 | 1985 | |
| 106 | Sistema Carsico Della Cod.(Su Spiria-Su Palu) | Italy | Sardinia | Nuoro | 21.189 | 34100 | 1086 | 331.0 | http://www.Class.del.g.piulunghe/profon.d'Italia | 1996 | |
| 107 | Sistema Cueto-Coventosa-Cubera | Spain | Cantabria | Porracolina | 21.130 | 34005 | 2674 | 815.0 | Jose Luis Membrado e-mail | Sep-09 | |
| 108 | Majaguas-Cantera (sis.caverna.) | Cuba | Pinar del Rio | S.de San Carlo | 21.127 | 34000 | 0 | 0.0 | The International Caver | 2000 | |
| 109 | Hidden River System (Hicks Cave) | U.S.A. | Kentucky | Hart | 21.100 | 33957 | 160 | 48.8 | Carbide Caver V7I10P111 | 10/98 | |
| 110 | Lost River Cave System | U.S.A. | Indiana | Orange | 21.009 | 33811 | 94 | 28.7 | Mark Deebel e-mail | Oct-08 | |
| 111 | Sistema Azpilicueta-Coteron-Renada (Sistema de la Vega) | Spain | Cantabria | Ruesga | 20.952 | 33719 | 1033 | 315.0 | Jose Luis Membrado e-mail | Jun-11 | |
| 112 | Teng Long Dong | China | Hubei | Lichuan | 20.830 | 33522 | 0 | 0.0 | http://www.grottes-et-karsts | Jul-07 | |
| 113 | Chestnut Ridge Cave System | U.S.A. | Virginia | Bath | 20.810 | 33490 | 804 | 245.1 | Gregg Clemmer | Dec-10 | |
| 114 | Blue Spring Cave | U.S.A. | Indiana | Lawrence | 20.810 | 33490 | 140 | 42.7 | Art Palmer e-mail | 04/02 | |
| 115 | Ellis Basin System (Tomo Thyme, Exhaleair, & Exhalibur) | New Zealand | South Island | Mt Arthur | 20.754 | 33400 | 3366 | 1026.0 | http://caves.org.nz/pmwiki.php/NZSS/Longest/Caves | Apr-10 | |
| 116 | Reseau du Verneau | France | Doubs | Deservillers | 20.692 | 33300 | 1270 | 387.0 | Jean-Yves Bigot | 01/04 | |
| 117 | Gamslocher-Kolowratsystem | Austria | Salzburg | Untersberg | 20.544 | 33063 | 3671 | 1119.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 118 | Terikan System (Rising, East, West) | Malaysia | Sarawak | Mulu | 20.240 | 32573 | 0 | 0.0 | Matt Kirby e-mail | Oct-05 | |
| 119 | Honey Creek Cave | U.S.A. | Texas | Comal | 20.043 | 32564 | 124 | 37.8 | George Veni e-mail | Jan-12 | |
| 120 | Ogof Agen Allwedd | United Kingdom | South Wales | Llangattock | 20.195 | 32500 | 525 | 160.0 | www.ukcaves.co.uk/all-longest | Nov-10 | |
| 121 | Cueva de los Chorros | Spain | Albacete | Riopar | 20.195 | 32500 | 427 | 130.0 | Clasificacion Por Desnivel | Jul-04 | |
| 122 | Gouffre Berger - Gouffre de la Fromagere | France | Isere | Vercors | 19.753 | 31790 | 4341 | 1323.0 | http://www.explos.org/blog/ via Jose Luis Membrado | Jun-10 | |
| 123 | Culverson Creek Cave System | U.S.A. | West Virginia | Greenbrier | 19.750 | 31785 | 329 | 100.3 | WVASS Database | May-07 | |
| 124 | Cueva la Vallina (VT.100) | Spain | Cantabria | Arredondo | 19.669 | 31654 | 515 | 157.0 | Juan Corrin e-mail | Oct-08 | |
| 125 | Kihaje Xontjoa | Mexico | Oaxaca | Cerro Rabon P. | 19.494 | 31373 | 4012 | 1223.0 | http://www.amcs-pubs.org/longanddeep.html | 06/02 | |
| 126 | Grotta di Monte Cucco | Italy | Umbria | Monte Cucco | 19.449 | 31300 | 3048 | 929.0 | Class.del.g.piu lunghe/profon.d'Italia | 1996 | |
| 127 | Systeme Prerouge - Litorne | France | Savoie | Bauges | 19.444 | 31292 | 1667 | 508.0 | 01/04 | ||
| 128 | Memorial Day Cave | U.S.A. | West Virginia | Pendleton | 19.430 | 31270 | 547 | 166.7 | GVKS - Peter Penczer | Jan-12 | |
| 129 | Sistema de Anielarra (Anialarra) | Spain | Nafarroa | Larra | 19.263 | 31000 | 2526 | 770.0 | Jose Luis Membrado e-mail | Jan-12 | |
| 130 | Krem Liat Prah/Um IM/Labbit | India | Meghalaya | Jaintia Hills | 19.236 | 30957 | 0 | 0.0 | Indian Sub Coninent Longest/Deepest Limestone Caves 3/08 | Mar-08 | |
| 131 | Cosanostraloch-Berger-Platteneck Hoehlesystem | Austria | Salzburg | Tennengebirge | 18.887 | 30396 | 4236 | 1291.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 132 | Sistema Itxina'pe Sarea | Spain | Bizkaia | Gorbea | 18.780 | 30224 | 0 | 0.0 | Jose Luis Membrado e-mail | Jan-11 | |
| 133 | Trou du Garde / Creux de la Cavale | France | Savoie | Les Deserts | 18.765 | 30200 | 1066 | 325.0 | Jean-Yves Bigot | 01/04 | |
| 134 | Toca da Barriguda | Brazil | Bahia | Campo Formoso | 18.641 | 30000 | 200 | 61.0 | Lilia Horta e-mail | 01/03 | |
| 135 | Reseau de Coufin-Chevaline | France | Isere | Vercors | 18.541 | 29839 | 1348 | 411.0 | Jean-Yves Bigot | 01/04 | |
| 136 | Carroll Cave | U.S.A. | Missouri | Camden | 18.153 | 29214 | 224 | 68 | Bob Lerch e-mail | Jan-11 | |
| 137 | Sistema Toh Ha (Under Water) | Mexico | Quintana Roo | Tulum | 18.044 | 29039 | 42 | 12.8 | QRSS Long Caves List | Feb-11 | |
| 138 | Moore Cave System (Berome & Tom) | U.S.A. | Missouri | Perry | 18.000 | 28968 | 0 | 0 | NSS Caves Files - Dick Blenz | Oct-05 | |
| 139 | Windy Mouth (Wind) Cave | U.S.A. | West Virginia | Greenbrier | 18.000 | 28968 | 0 | 0.0 | Jim Hixson | 02/89 | |
| 140 | Szepvolgyi System | Hungary | Budapest | 17.771 | 28600 | 404 | 123.0 | BR Gabor Losonci e-mail | Dec-11 | ||
| 141 | Sistema de Tepepa (Ehecatl+Niebla) | Mexico | Puebla | ? | 17.709 | 28500 | 2949 | 899.0 | Desent 209 | Sep-09 | |
| 142 | Reseau de Francheville | France | Cote-d'Or | Francheville | 17.523 | 28200 | 489 | 149.0 | Jean-Yves Bigot | 01/04 | |
| 143 | Fitton (Beauty) Cave | U.S.A. | Arkansas | Newton | 17.500 | 28164 | 313 | 95.4 | Scott House e-mail | 02/04 | |
| 144 | Sistema Pena de Mediodia | Spain | Huesca | Pirineos | 17.493 | 28152 | 2959 | 902.0 | Jose Luis Membrado e-mail | Sep-11 | |
| 145 | Jagerbrunntro-Hoehlensystem | Austria | Salzburg | Hagengebirge | 17.415 | 28026 | 3537 | 1078.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 146 | Ogof Daren Cilau System | United Kingdom | South Wales | Llangattock | 17.398 | 28000 | 761 | 232.0 | www.ukcaves.co.uk/all-longest | Nov-10 | |
| 147 | Old Homestead Cave | Australia | Western Australia | Nullarbor Plain | 17.398 | 28000 | 0 | 0.0 | International Caver No.7 | 1995 | |
| 148 | Hualalai Ranch Cave (Lava Tube) | U.S.A. | Hawaii | Hawaii | 17.265 | 27785 | 1449 | 441.7 | Doug Medville e-mail | Mar-07 | |
| 149 | Thornhill Cave System | U.S.A. | Kentucky | Breckenridge | 17.232 | 27732 | 0 | 0.0 | Arron Reed Louisville Grotto e-mail | 11/01 | |
| 150 | Coldwater Cave | U.S.A. | Iowa | Winneshiek | 17.005 | 27367 | 80 | 24.4 | Larry Welch e-mail | 07/03 | |
| 151 | Gap Cave System (Cudjo's) (C.G.N.H.P.) | U.S.A. | Virginia | Lee | 16.984 | 27333 | 491 | 149.7 | Bob Gulden (CRF) | Dec-11 | |
| 152 | Otscher-Hoehlensystem | Austria | Nieberosterreich | Otscher | 16.806 | 27046 | 2172 | 662.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 153 | Kingsdale Cave System | United Kingdom | Yorkshire | Northern Dales | 16.777 | 27000 | 541 | 165.0 | www.ukcaves.co.uk/all-longest | Nov-10 | |
| 154 | Sistema Caracol | Mexico | Quintana Roo | Tulum | 16.760 | 26972 | 0 | 0.0 | QRSS Long Caves List | Feb-11 | |
| 155 | Green Cathedral/Turtle Cave System | Malaysia | Sarawak | Gunung Buda | 16.759 | 26971 | 997 | 304.0 | NSS News V62N8P225 | Aug-04 | |
| 156 | Butler-Sinking Creek System | U.S.A. | Virginia | Bath | 16.620 | 26747 | 624 | 190.2 | VSS Long Cave List | Jun-10 | |
| 157 | McClung Cave System | U.S.A. | West Virginia | Greenbrier | 16.400 | 26393 | 200 | 61.0 | WVACS | 10/82 | |
| 158 | Sistema Cheve (Cuicateco) | Mexico | Oaxaca | Cuicatlan | 16.276 | 26194 | 4869 | 1484.0 | Mark Minton e-mail | May-07 | |
| 159 | Reseau de Bunant | France | Haute Savoie | Parmelan | 16.235 | 26128 | 1188 | 362.0 | Jean-Yves Bigot | 01/04 | |
| 160 | Gran Sistema Cavernaio de Fuentes | Cuba | Pinae del Rio | Sierra de Mesa | 16.156 | 26000 | 0 | 0.0 | The International Caver #8 | 1993 | |
| 161 | Perdidos (sis.cavernario de los) | Cuba | Pinar del Rio | S. del Roario | 16.156 | 26000 | 0 | 0.0 | Speleolgia | 1977 | |
| 162 | Rumbling Falls Cave. | U.S.A. | Tennessee | Van Buren | 16.000 | 25750 | 474 | 144.5 | Marion O.Smith per TCS | 02/03 | |
| 163 | Klarahohle | Austria | Oberosterreich | Sengsengebirge | 15.860 | 25525 | 991 | 302.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 164 | Mystery Cave System | U.S.A. | Missouri | Perry | 15.842 | 25495 | 0 | 0 | M.S.S. Walsh | 02/04 | |
| 165 | Sistema Tibia-Fresca | Spain | Cantabria | Porracolina | 15.754 | 25353 | 1663 | 507.0 | Jose Luis Membrado e-mail | Feb-08 | |
| 166 | Sistema de las Fuentes de Escuain (Badalona B15-B1) | Spain | Huesca | Escuain | 15.665 | 25210 | 3776 | 1151.0 | Jose Luis Membrado e-mail | Aug-11 | |
| 167 | Fern Cave (597) | U.S.A. | Alabama | Jackson | 15.630 | 25154 | 536 | 163.4 | Fern Cave Project | 1995 | |
| 168 | Baradla barlang-Domica jaskyna | Hungray/Slovakia | Josvafo | Roznava | 15.609 | 25120 | 381 | 116.0 | http://www.caverinfo.com/ | Dec-11 | |
| 169 | Mountain Eye Cave System (Saltpeter) | U.S.A. | Tennessee | Fentress | 15.587 | 25085 | 300 | 91.4 | Tenn. Cave Survey | 03/87 | |
| 170 | Fort Stanton Cave | U.S.A. | New Mexico | Lincoln | 15.570 | 25057 | 170 | 51.8 | Lee H.Skinner e-mail | Jan-12 | |
| 171 | Buso de la Rana | Italy | Veneto | Faedo-Casaron | 15.555 | 25033 | 738 | 225.0 | Class.del.g.piu lunghe/profon.d'Italia | 1996 | |
| 172 | Bettenhohle | Switzerland | Obwalden | Kerns | 15.261 | 24560 | 2395 | 730.0 | http://ch.speleo.info | Jun-11 | |
| 173 | Sistema Naranjal (Najaron-Maya Blue) (Under Water) | Mexico | Quintana Roo | Tulum | 15.181 | 24432 | 114 | 34.7 | QRSS Long Caves List | Feb-11 | |
| 174 | Nunley Mtn.Cave System (Maria Angela Grotto) | U.S.A. | Tennessee | Grundy | 15.152 | 24385 | 350 | 106.7 | David Parr per TCS | 02/03 | |
| 175 | Gouffre Lonne-Peyret (Reseau des Arres Planeres) | France | Pyrenees-Atlantiques | Pierre Saint Martin | 15.125 | 24341 | 2648 | 807.0 | Jean-Yves Bigot | 01/04 | |
| 176 | Nettlebed Cave System (Blizzard Pot top entrance) | New Zealand | South Island | Mt Arthur | 15.069 | 24252 | 2917 | 889.0 | http://caves.org.nz/pmwiki.php/NZSS/Longest/Caves | Apr-10 | |
| 177 | Cave Creek Cave System | U.S.A. | Kentucky | Pulaski | 15.010 | 24156 | 170 | 51.8 | COG Squeaks | 1977 | |
| 178 | Foglepole Cave | U.S.A. | Illinois | Monroe | 15.000 | 24140 | 0 | 0.0 | NSS News V56N4P114 | 04/98 | |
| 179 | Illyuzia-Mezhonnogo-Snezhnaya | Georgia | Abkhazia | West Caucasus | 14.963 | 24080 | 5751 | 1753.0 | de Alexey Shelepin (jefe de expedicicion) | Sep-07 | |
| 180 | Clearwell Caves (Part Mine) | United Kingdom | Forest of Dean | Cloucestershire | 14.913 | 24000 | 351 | 107.0 | www.ukcaves.co.uk/all-longest | Nov-10 | |
| 181 | Tjoarvekrajgge | Norway | Nordland | Sorfold | 14.856 | 23908 | 1631 | 497.0 | Torstein Finnesand e-mail | Aug-10 | |
| 182 | Sistema Soconusco | Mexico | Chiapas | ? | 14.823 | 23856 | 1683 | 513.0 | Taco van Leperen via Mark Minton e-mail | Nov-05 | |
| 183 | Benedicts (Persinger) Cave | U.S.A. | West Virginia | Greenbrier | 14.746 | 23732 | 254 | 77.4 | Bill Douty e-mail | Apr-09 | |
| 184 | Akkado | Japan | Iwate | ? | 14.726 | 23700 | 0 | 0.0 | May-06 | ||
| 185 | jaskinia Wielka Sniezna | Poland | Czerwone Wierchy | Malolaczniak | 14.677 | 23620 | 2703 | 824.0 | Polish Caving 2005-2009 | Jun-09 | |
| 186 | Big Horn - Horsethief Cave System | U.S.A. | Wyoming / Montana | Bighorn | 14.615 | 23521 | 171 | 52.1 | Even Gehring e-mail | 02/04 | |
| 187 | Systeme de Foussoubie | France | Ardeche | Bas-Vivarais | 14.457 | 23266 | 453 | 138.0 | Jean-Yves Bigot | 01/04 | |
| 188 | Cueva Coyolat | Mexico | Puebla | Tlacotepec | 14.292 | 23000 | 2034 | 620.0 | Gustavo e-mail AMCS#29 | May-07 | |
| 189 | Complesso Fiume-Vento | Italy | Marche | Frasassi | 14.292 | 23000 | 804 | 245.0 | http://www.Class.del.g.piulunghe/profon.d'Italia | 1996 | |
| 190 | Mini - Martin Cave - Exit Cave | Australia | Tasmania | Ida Bay | 14.292 | 23000 | 722 | 220.0 | Sherry Juneo | 1996 | |
| 191 | Reseau de Fuilla - Canalettes | France | Pyrenees-Orientales | Conflent | 14.292 | 23000 | 0 | 0.0 | D'apres Christophe Levillain | 2003 | |
| 192 | Rimstone River Cave | U.S.A. | Missouri | Perry | 14.200 | 22853 | 0 | 0 | M.S.S. Walsh | 02/04 | |
| 193 | Powell's Cave System | U.S.A. | Texas | Menard | 14.199 | 22851 | 75 | 22.9 | Texas Speleological Survey via Jerry Atkinson e-mail | Jan-10 | |
| 194 | Systeme Biolles - Squelettes - Crolleurs | France | Savoie | Margeriaz | 14.155 | 22781 | 1939 | 591.0 | Jean-Yves Bigot | 01/04 | |
| 195 | Bone - Norman Cave System | U.S.A. | West Virginia | Greenbrier | 14.118 | 22721 | 186 | 56.7 | Bill Douty e-mail | 12/97 | |
| 196 | Dof-Sonnenleiter-Hoehlensystem | Austria | Totes Gebirge | Styria | 14.103 | 22696 | 3583 | 1092.0 | Robert Winkler e-mail | Jan-11 | |
| 197 | Kryshtaleva (Kristal'naja) (Gypsum) | Ukraine | Ternopil | Borshchiv | 14.049 | 22610 | 66 | 20.0 | cavemlynky@gmail.com | Feb-11 | |
| 198 | Grotta della Bigonda | Italy | Trentino A.A. | Alt.di Asingo | 14.043 | 22600 | 1476 | 450.0 | Class.del.g.piu lunghe/profon.d'Italia | 1996 | |
| 199 | Grotte d'Arphidia | France | Pyrenees-Atlantiques | Pierre Saint Martin | 14.027 | 22575 | 2336 | 712.0 | Jean-Yves Bigot | 01/04 | |
| 200 | Jenolan System | Australia | NSW | ? | 13.983 | 22503 | 348 | 106.0 | Mark Sefton e-mail | Jul-06 | |
| 201 | Baishui Dong | China | Guizhou | Jiang Kou | 13.950 | 22450 | 0 | 0.0 | http://www.grottes-et-karsts-de-chine.org/npds/gkc_rcdev50.php? | Aug-05 | |
| 202 | Gouffre Nebele | France | Pyrenees-Atlantiques | Aquitaine | 13.813 | 22230 | 755 | 230.0 | Jean-Yves Bigot | 01/04 | |
| 203 | Stratenska jaskynoa - Psie diery | Slovakia | Spissko-gemersky | Slovensky raj | 13.777 | 22172 | 604 | 184.0 | www.drienka.host.sk/najdlhsie.php | Jan-12 | |
| 204 | Pestera din Piriul Hodobanei (Pestera Ratei ) | Romania | Alba | Mtii Bihor | 13.758 | 22142 | 594 | 181.0 | Victor Ursu info | Sep-10 | |
| 205 | Burgunderschacht | Austria | Oberosterreich | Totes Gebirge | 13.620 | 21920 | 2782 | 848.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 206 | Whiterock Cave | Malaysia | Sarawak | Mulu | 13.608 | 21900 | 0 | 0.0 | 2008 Interim report | Dec-08 | |
| 207 | Sistema del Hoyon de Saco(Sistema del Hoyo Grande) | Spain | Cantabria | Porracolina | 13.546 | 21800 | 1739 | 530.0 | Clasificacion Por Desnivel | Jul-04 | |
| 208 | Sistema del Rio Encantado | Puerto Rico | Florida | Barceloneta | 13.527 | 21770 | 1119 | 341.0 | Mark Minton e-mail | Jun-11 | |
| 209 | Krem KotSati/Um Lawan | India | Meghalaya | Jaintia Hills | 13.378 | 21530 | 705 | 215.0 | Indian Sub Coninent Longest/Deepest Limestone Caves 3/08 | Mar-08 | |
| 210 | Perte de Massar | France | Aveyron | Causse de Limogne | 13.049 | 21000 | 394 | 120.0 | Claude Milhas | 01/04 | |
| 211 | St.Pauls Underground River Cave | Philippines | Palawan Island | ? | 13.049 | 21000 | 328 | 100.0 | Spelunca #54 | 1994 | |
| 212 | Koun Dun Cave | Laos | ? | ? | 13.049 | 21000 | 0 | 0.0 | WWW.caverinfo.com | Apr-11 | |
| 213 | Emesine Cave (1881 System) (Lava Tube) | U.S.A. | Hawaii | Hawaii | 12.890 | 20744 | 1433 | 436.8 | Don Coons e-mail | 03/02 | |
| 214 | Castleguard Cave | Canada | Alberta | Rocky Mountain | 12.874 | 20718 | 1260 | 384.0 | Dan Green e-mail | May-09 | |
| 215 | Mystery Cave System | U.S.A. | Minnesota | Fillmore | 12.790 | 20584 | 101 | 30.8 | Minnesota Speleology | 08/87 | |
| 216 | Mesaini Tiei | Slovenia | Vichodni Trtry | Vysoki Tatry | 12.782 | 20570 | 377 | 115.0 | http://www.jamarska-zveza.si/eng/longest.html | Jan-12 | |
| 217 | Conjunto Sao Mateus/Imbira | Brazil | Goias | Sao Domingos | 12.763 | 20540 | 0 | 0.0 | AGCM | 1986 | |
| 218 | Reseau Jean Bernard | France | Haute Savoie | Haute-Giffre | 12.760 | 20536 | 5256 | 1602.0 | Spelunca N0.103, Federation Francaise de Speleologie | Jun-05 | |
| 219 | Selminum Tem | Papua New Guinea | Western Prov. | Hindenburg Rng | 12.738 | 20500 | 449 | 137.0 | B.C.R.A. Bulletin | 1977 | |
| 220 | Pestera Topolnita (Complexui ?) | Romania | Mahedinti | Podisul Mahedinti | 12.738 | 20500 | 417 | 127.0 | International Caver #11 | 1994 | |
| 221 | Sistema de Cubija (North Vega System) | Spain | Cantabria | Matienzo | 12.705 | 20446 | 482 | 147.0 | Jose Luis Membrado e-mail | Sep-11 | |
| 222 | Big Bat Cave | U.S.A. | Kentucky | Breckenridge | 12.680 | 20406 | 0 | 0.0 | List of Mapped Caves of Kentucky | 01/86 | |
| 223 | Anvil Cave (279) | U.S.A. | Alabama | Morgan | 12.667 | 20386 | 51 | 15.5 | Alabama Cave Survey | 04/80 | |
| 224 | Gradys (Mammoth River) Cave System | U.S.A. | Kentucky | Hart | 12.600 | 20278 | 120 | 36.6 | Carbide Caver V7I9P111 | 10/98 | |
| 225 | Frauenmauer-Langstein-Hoehlensystem | Austria | Steiermark | Hochsehwab | 12.561 | 20215 | 1952 | 595.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 226 | Jaskyna Mitvych netopierov | Slovakia | Nizke Tatry | Dumbier | 12.549 | 20195 | 984 | 300.0 | www.drienka.host.sk/najdlhsie.php | 01/99 | |
| 227 | Sistemul Ciur - Ponor - Toplita de Rosia | Romania | Bihor | Mtii Padurea Craiului | 12.521 | 20150 | 748 | 228.0 | Victor Ursu e-mal | Nov-10 | |
| 228 | Complesso del Foran del Muss | Italy | Friuli VG | Canin Massif | 12.427 | 20000 | 3740 | 1140.0 | A.Kimchouk List | 06/02 | |
| 229 | Aven Noir | France | Aveyron | Grands Causses | 12.427 | 20000 | 351 | 107.0 | info FFS | 01/04 | |
| 230 | Cueva del Soplao | Spain | Cantabria | Sierra de Arnero | 12.427 | 20000 | 0 | 0.0 | Jose Luis Membrado e-mail | Nov-10 | |
| 231 | Bigfoot Cave | U.S.A. | California | Siskiyou | 12.400 | 19956 | 1205 | 367.3 | Steve Knutson | 12/90 | |
| 232 | SchrattenHoehle | Switzerland | Obwalden | Kerns | 12.207 | 19645 | 1880 | 573.0 | http://ch.speleo.info | Jun-11 | |
| 233 | Ellisons Cave | U.S.A. | Georgia | Walker | 12.127 | 19517 | 1063 | 324.0 | Georgia Underground V24N1 | 03/87 | |
| 234 | Omber en Banda al Bus del Zel | Italy | Lombardia | Cariadeghe | 12.117 | 19500 | 2953 | 900.0 | mark minton | Nov-11 | |
| 235 | Lingshandong | China | Guizhou | Zhengan | 11.993 | 19301 | 1591 | 485.0 | Long Caves in China by Erin Lynch | Jan-07 | |
| 236 | Torca de los Corrales del Trillo (Sistema Pena del Trillo-La Tramasquera) | Spain | Cantabria / Burgos | ? | 11.992 | 19300 | 1430 | 436.0 | Clasificacion Por Desnivel | Jul-04 | |
| 237 | V5 Sistemul Varasoaia (V5-V24) | Romania | Bihor | Mtii Bihor | 11.961 | 19250 | 2142 | 653.0 | Victor Ursu e-mal | Nov-10 | |
| 238 | Sistema del Faro-Isla de Mona | Puerto Rico | Isla de Mona | ? | 11.868 | 19100 | 118 | 36.0 | Marc Ohms e-mail | 04/01 | |
| 239 | Grotte de Neuvon | France | Cote-d'Or | Plom.-les-Dij. | 11.868 | 19100 | 115 | 35.0 | Spelunca #56 | 1995 | |
| 240 | Red de Toneyo | Spain | Asturias | Macizo del Cornion | 11.787 | 18970 | 2014 | 614.0 | List of Spains Longest & Deepest (WWW) | 04/98 | |
| 241 | Hang khe Rhy | Vietnam | Quang Binh | ? | 11.756 | 18920 | 0 | 0.0 | Peter MacNab e-mail | Jul-10 | |
| 242 | Cueva del Hoyo Salcedillo | Spain | Cantabria | Porracolina | 11.682 | 18800 | 1745 | 532.0 | Jose Luis Membrado e-mail | Dec-08 | |
| 243 | Wells Cave | U.S.A. | Kentucky | Pulaski | 11.496 | 18501 | 0 | 0.0 | NSS News V57N10P308 | 10/99 | |
| 244 | Rhar Bou Ma'za (Tafna River Cave) | Algeria | Tilimsen | Tilimsen Range | 11.433 | 18400 | 0 | 0.0 | Atlas - Great Caves of the World | 1989 | |
| 245 | Wit Tamdoun | Morocco | Agadir | Immouzer | 11.433 | 18400 | 0 | 0.0 | Caves & Caving I84 | Sum99 | |
| 246 | Beacon Woods - Waynes World System (Under Water) | U.S.A. | Florida | Pasco | 11.364 | 18288 | 160 | 48.8 | Die langsten Unterwasserhohlensysteme der welt, Oliver Knab | Jun-09 | |
| 247 | Jamski sustav Kita Gacesina - Drazenova puhaljka | Croatia | Juzni Velebit | Crnopac | 11.351 | 18267 | 1739 | 530.0 | www.speleologija.hr/popis | Apr-11 | |
| 248 | Reseau Fanges - Paradet | France | Pyrenees-Orientales | Fenouilledes | 11.310 | 18202 | 984 | 300.0 | Bernard Ournie e-mail | Aug-10 | |
| 249 | Luweng Jaran | Indonesia | Java Timur | Pacitan | 11.309 | 18200 | 394 | 120.0 | Tim Stratford (International Caver) | 03/96 | |
| 250 | Cueva del Saman | Venezuela | Edo Zulia | Fundo las Pis. | 11.309 | 18200 | 0 | 0.0 | Franco Urbani | 1998 | |
| 251 | Krem UmTHLOO-SYNRANG Labbit | India | Meghalaya | Jaintia Hills | 11.297 | 18181 | 617 | 188.0 | Indian Sub Coninent Longest/Deepest Limestone Caves 3/08 | Mar-08 | |
| 252 | Pestera de la Izvorul Tausoare | Romania | Bistrita-Nasaud | Mtii Rodnei | 11.251 | 18107 | 1512 | 461.0 | Victor Ursu e-mal | Nov-10 | |
| 253 | Ambatoharanana | Madagascar | Ambilobe | Ankarana | 11.247 | 18100 | 0 | 0.0 | Atlas - Great Caves of the world | 1989 | |
| 254 | Grotte de Gournier | France | Isere | Vercors | 11.185 | 18000 | 2231 | 680.0 | The International Caver #21P41 | 1997 | |
| 255 | Duhlata (D(a)(ou)hklata) | Bulgaria | Sofia | ? | 11.185 | 18000 | 230 | 70.0 | Jose Luis membrado e-mail | Jul-07 | |
| 256 | Goochland - Poplar Cave Complex | U.S.A. | Kentucky | Rockcastle | 11.180 | 17992 | 0 | 0.0 | Kentucky Speleo-Fest Guidebook | 1981 | |
| 257 | Groaning Cave | U.S.A. | Colorado | Garfield | 11.154 | 17951 | 149 | 45.4 | Stuart Marlatt e-mail | 04/03 | |
| 258 | Reseau Superieur du clos d'Aspres | France | Isere | Vercors | 11.101 | 17865 | 2320 | 707.0 | Jean-Yves Bigot | 01/04 | |
| 259 | Dry Cave | U.S.A. | New Mexico | Eddy | 11.090 | 17848 | 279 | 85.0 | Stan Allison via Pete | Nov-10 | |
| 260 | Tanne aux Cochons - Tanne Froide | France | Savoie | margeriaz | 10.995 | 17694 | 2700 | 823.0 | Jean-Yves Bigot | 01/04 | |
| 261 | Chu Yan (Xiniu) Dong | China | Guizhou | An Long | 10.936 | 17600 | 1165 | 355.0 | http://www.grottes-et-karsts-de-chine.org/npds/gkc_rcdev50.php? | 1993 | |
| 262 | Peak/Speedwell System (part mine) | United Kingdom | Derbyshire | Castleton | 10.930 | 17590 | 814 | 248.0 | www.ukcaves.co.uk/all-longest | Nov-10 | |
| 263 | Aven du Sotch de la Tride | France | Aveyron | Grands Causses | 10.812 | 17400 | 1122 | 342.0 | Liste Drouin | 2003 | |
| 264 | Krasnaya (Kyzyl-Toba) | Ukraine | Crimea | ? | 10.781 | 17350 | 656 | 200.0 | cavemlynky@gmail.com | Feb-11 | |
| 265 | Complesso dell'Alto Releccio (Vive le Donne) | Italy | Lombardia | Grigna. Settentrionale | 10.750 | 17300 | 3924 | 1196.0 | Andrea Maconi e-mail | Nov-09 | |
| 266 | Crumps Spring Cave | U.S.A. | Kentucky | Hart | 10.740 | 17284 | 140 | 42.7 | Joe Saunders | 09/89 | |
| 267 | Mawandong | China | ? | ? | 10.707 | 17232 | 1591 | 485.0 | http://www.grottes-et-karsts-de-chine.org | Aug-05 | |
| 268 | Duobing Dong | China | Guizhou | Xiuwen/Xifeng | 10.694 | 17210 | 0 | 0.0 | http://www.grottes-et-karsts-de-chine.org/npds/gkc_rcdev50.php? | 12/02 | |
| 269 | Conjunto Santa Rita | Brazil | Iraquara | Bahia | 10.594 | 17050 | 0 | 0.0 | Vulcains #53P45 | 1995 | |
| 270 | Cueva del Viento-cueva del Sobrado (Lava Tube) | Spain | Canarias Island | Tenerife Is. | 10.583 | 17032 | 1837 | 560.0 | Grupo de Espeleologia Tebexcorade | 4/8 | |
| 271 | Neide - Muruk Cave | Papua New Guinea | New Britain | Galowe Plateau | 10.563 | 17000 | 4127 | 1258.0 | Deep Cave List by Philippe Drouin | 02/01 | |
| 272 | Feihu Dong | China | Hunan | Longshan | 10.563 | 17000 | 1115 | 340.0 | http://www.grottes-et-karsts-de-chine.org/npds/gkc_rcdev50.php? | 12/02 | |
| 273 | Petroglyph Cave (part of the Caves Branch S.) | Belize | ? | ? | 10.563 | 17000 | 0 | 0.0 | Tom Miller e-mail | 01/02 | |
| 274 | Reseau du Rupt du Puits | France | Meuse | Barrois | 10.563 | 17000 | 0 | 0.0 | D'apres Stephane Jaillet | 2003 | |
| 275 | Cueva de Rescano - Torca de la Luna Llena | Spain | Cantabria | ? | 10.563 | 17000 | 0 | 0.0 | Jose Luis Membrado e-mail | Jan-07 | |
| 276 | Gaping Gill System | United Kingdom | Yorkshire Dales | Ingleborough | 10.501 | 16900 | 650 | 198.0 | www.ukcaves.co.uk/all-longest | Nov-11 | |
| 277 | Portal-BoarHole System | U.S.A. | West Virginia | Greenbrier | 10.400 | 16737 | 333 | 101.5 | WVASS Database | May-07 | |
| 278 | Maxwellton (Cowshit Pit) Cave | U.S.A. | West Virginia | Greenbrier | 10.290 | 16560 | 293.0 | 89.3 | Jeff Bray via George Dasher | Mar-11 | |
| 279 | Aven de la Leicasse | France | Herault | Grands Causses | 10.271 | 16530 | 1168 | 356.0 | Jean-Yves Bigot | 01/04 | |
| 280 | James (Thousand Domes) Cave | U.S.A. | Kentucky | Edmonson | 10.250 | 16496 | 0 | 0.0 | Glenn Merrill | 07/84 | |
| 281 | Reseau de la Couze (Correze) | France | Correze | Causse de Martel | 10.207 | 16426 | 338 | 103.0 | Thierry Apriland via Yvonne e-mail | 01/04 | |
| 282 | Sistema Roraima Sur | Venezuela | ? | ? | 10.190 | 16400 | 0 | 0.0 | 2009 NSS/ICS Kerrville Texas | Jul-09 | |
| 283 | Sustav Dulin ponor - Medvedica | Croatia | Hrvatska | Ogulin | 10.188 | 16396 | 0 | 0.0 | http://public.srce.hr/speleo/karta.html | 1989 | |
| 284 | Pestera din Valea Rea | Romania | Bihor | Mtii Bihor | 10.164 | 16357 | 1220 | 372.0 | Victor Ursu e-mal | Nov-10 | |
| 285 | Sistema Kulogorskaya-Troya (Gypsum) | Russia | Arkhangelsk | Pinega | 10.096 | 16248 | 59 | 18 | Karst and cave Pinega's - Victor Malkov, Evgeny Gurkalo | Jun-05 | |
| 286 | Riesending-Schachthohle | Germany | Bavaria | Untersgberg Mtns. | 10.066 | 16200 | 3471 | 1058.0 | Thomas Matthalm e-mail | Oct-11 | |
| 287 | Cloud Cave - Cobra Cave - Bridge System | Malaysia | Sarawak | Mulu | 10.019 | 16124 | 1083 | 330.0 | Matt Kirby e-mail | Dec-05 | |
| 288 | Cueva Ojos de Cristal | Venezuela | Roraima | ? | 10.004 | 16100 | 240 | 73.0 | NSS News V68N7P17 | Jul-10 | |
| 289 | Perkins Cave | U.S.A. | Virginia | Washington | 9.997 | 16089 | 300 | 91.4 | Virginia Speleological Survey | 1987 | |
| 290 | Krubera (Voronja) Cave | Georgia | Abkhazia | West Caucasus | 9.978 | 16058 | 7188 | 2191.0 | Alexander Klimchouk | Nov-10 | |
| 291 | Gouffre de Cabrespine (lo Gaugnas) | France | Aude | Montagne Noire | 9.978 | 16058 | 804 | 245.0 | Jean-Yves Bigot | 01/04 | |
| 292 | Pahoa Cave(s) (segmentation??) (Lava Tube) | U.S.A. | Hawaii | Hawaii | 9.942 | 16000 | 1150 | 350.5 | Lava Tube Flow e-mails | May-05 | |
| 293 | Dan yr Ogof | United Kingdom | South Wales | Breconshire | 9.942 | 16000 | 492 | 150.0 | www.ukcaves.co.uk/all-longest | Nov-10 | |
| 294 | Poulnagllum - Poulelva | United Kingdom | Co.Clare | 9.942 | 16000 | 459 | 140.0 | www.ukcaves.co.uk/all-longest | Nov-10 | ||
| 295 | Igues de Goudou - Lacarriere | France | Lot | Causse de Gramat | 9.942 | 16000 | 394 | 120.0 | Jean-Yves Bigot | 01/04 | |
| 296 | ``uta do Padre | Brazil | Bahia | Santana | 9.818 | 15800 | 0 | 0.0 | International Caver No.1 | 10/91 | |
| 297 | Reseau des Grottes aux Fees | Switzerland | Vallorbe | 9.813 | 15792 | 745 | 227.0 | http://ch.speleo.info | Jun-11 | ||
| 298 | Sistema Lecherines | Spain | Huesca | Macizo de Aspe | 9.656 | 15540 | 3310 | 1009.0 | Jose Luis Membrado e-mail | Jan-07 | |
| 299 | Sullivan Cave | U.S.A. | Indiana | Lawrence | 9.632 | 15501 | 105 | 32.0 | Sam Frushour , NSS Convention | 1973 | |
| 300 | Borne aux Cassots | France | Jura | Nevy-sur-Seile | 9.631 | 15500 | 472 | 144.0 | Jean-Yves Bigot | 01/04 | |
| 301 | Big Bone Cave (Saltpeter) | U.S.A. | Tennessee | Van Buren | 9.627 | 15493 | 226 | 68.9 | John Smyre | 06/84 | |
| 302 | Diros Cave | Greece | Peloponnese | Laconia | 9.569 | 15400 | 0 | 0.0 | www.selas.org/download/deepcaves05.pdf | Oct-09 | |
| 303 | Sistema de las Bernias | Spain | Burgos | Lunada | 9.532 | 15340 | 906 | 276.0 | Clasificacion Por Desnivel | Jul-04 | |
| 304 | Hang Vom | Vietnam | Quang Binh | ? | 9.513 | 15310 | 0 | 0.0 | Peter MacNab e-mail | Jul-10 | |
| 305 | Cueva de Alpazat | Mexico | Puebla | 9.445 | 15200 | 0 | 0.0 | http://www.amcs-pubs.org/longanddeep.html | Nov-05 | ||
| 306 | Sof Omar Holluca | Ethiopia | Bale | Ityopya | 9.383 | 15100 | 49 | 15.0 | Atlas - Great Caves of the World | 1989 | |
| 307 | Sistema Ponderosa (Under Water) | Mexico | Quintana Roo | Tulum | 9.332 | 15019 | 67 | 20.4 | QRSS Long Caves List | Feb-11 | |
| 308 | Steinbruckenhohle | Austria | Totes Gebirge | Steiermark | 9.321 | 15000 | 2034 | 620.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 309 | Reseau de Malissard | France | Isere / Savoie | Chartreuse | 9.321 | 15000 | 1362 | 415.0 | Jean-Yves Bigot | 01/04 | |
| 310 | Altherrenlabyrinth | Austria | Salzburg | Tennengebirge | 9.321 | 15000 | 1312 | 400.0 | http://www.hoehle.org/long&deep.php | Nov-09 | |
| 311 | Grotte de la Cigalere | France | Ariege | Pyrenees | 9.321 | 15000 | 748 | 228.0 | Spelunca #56 (Not on the TIC List) | 1995 | |
| 312 | Poulnagollum - Poulelva | Ireland | Co.Clare | 9.321 | 15000 | 459 | 140.0 | www.ukcaves.co.uk/all-longest | Apr-08 | ||
| 313 | Sistema Constantino | Cuba | Pinar del Rio | ? | 9.321 | 15000 | 0 | 0.0 | WLCL | ||
| 314 | Sistema Su Bentu - Sa Oche | Italy | Sardinia | Nuoro | 9.321 | 15000 | 0 | 0.0 | http://www.Class.del.g.piulunghe/profon.d'Italia | 1996 | |
| 315 | Cueva de la Lastrilla | Spain | Cantabria | ? | 9.321 | 15000 | 0 | 0.0 | Clasificacion Por Desnivel | Jul-04 | |