Caves Mapped/Surveyed with 350+ feet of vertical
Compiled by: Paul Burger – December 9, 2022
Send updates and corrections to Cavemonpaul at hotmail.com
Copyright 2022 NSS Geo2, Paul Burger NSS 26452, FE, CM
Do not ask for cave locations, I will not give them out.
Type: CT=Chalk & Tufa & Laterite , C=Conglomerate & Schist, G=Gypsum, L=Lava, Q=Sandstone & Quartzite, S=Salt, T=Talus, Boulder & Granite, UW=Underwater
| TYPE | RANK | CAVE NAME | STATE | COUNTY | Length (mi) | Length (m) | Depth (ft) | Depth(m) | SOURCE | DATE |
|---|---|---|---|---|---|---|---|---|---|---|
| L | 1 | Kazumura Cave (Lava Tube) | Hawaii | Hawaii | 40.7 | 65500 | 3613.8 | 1101.5 | HSS Newsletter N9P7 | 6/16/2022 |
| L | 2 | Delissea Cave System | Hawaii | Hawaii | 29.21 | 47008.94 | 3610 | 1100.33 | Peter Bosted e-mail | 2/20/2022 |
| L | 3 | Umi'i Manu System | Hawaii | Hawaii | 2.415 | 3886.6 | 1869.1 | 569.7 | Doug Medville | 2/1/2000 |
| - | 4 | Tears of the Turtle Cave | Montana | Flathead | 1.488 | 2394.8 | 1863 | 567.84 | Jason Ballensky & Peter Johnson e-mail | 8/19/2022 |
| L | 5 | Hue Hue (Manini Owali) Cave | Hawaii | Hawaii | 6.711 | 10800.3 | 1623 | 494.7 | Stephan Kempe | 10/1/1999 |
| - | 6 | Lechuguilla Cave (C.C.N.P.) | New Mexico | Eddy | 150.4 | 242045.33 | 1588.6 | 484.2 | Hazel Barton e-mail | 1/20/2022 |
| - | 7 | Virgil The Turtle's Great House Cave | Montana | Flathead | 1.022 | 1644.75 | 1586 | 483.41 | Bodenhamer, Ballensky, Rykwalder, Sainsbury via e-mail | 7/16/2022 |
| - | 8 | Columbine Crawl | Wyoming | Teton | 2.301 | 3703.1 | 1551 | 472.74 | Warren Anderson e-mail | 1/16/2022 |
| L | 9 | Hualalai Ranch Cave | Hawaii | Hawaii | 15.048 | 24217 | 1449.1 | 441.7 | Doug Medville e-mail | 3/16/2022 |
| L | 10 | Emesine Cave (1881 System) | Hawaii | Hawaii | 12.89 | 20744.4 | 1433.1 | 436.8 | Don Coons e-mail | 3/16/2022 |
| - | 11 | Great EX(pectations) Cave | Wyoming | Washakie | 7.854 | 12639.79 | 1408 | 429.16 | NSS News V44N6 (Peter Shifflett) | 6/1/1986 |
| - | 12 | Loaded Dice Cave | Wyoming | Teton | 1.048 | 1687.23 | 1395.7 | 425.42 | Bridger-Teton Cave Project | 9/21/2022 |
| - | 13 | Main Drain Cave | Utah | Cache | 2.53 | 4071.64 | 1306 | 398.07 | Tony Grove Cave Project | 8/16/2022 |
| - | 14 | Omega System | Virginia | Wise | 29.43 | 47362.99 | 1263 | 384.96 | Mike Ficco e-mail | 6/16/2022 |
| - | 15 | Bigfoot Cave | California | Siskiyou | 16.25 | 26151.84 | 1205 | 367.28 | Scott Linn e-mail | 10/16/2022 |
| - | 16 | Neffs Canyon Cave | Utah | Salt Lake | 0.76 | 1223.1 | 1163 | 354.48 | www.caves.org/grotto/timpgrotto/ | 5/1/1989 |
| L | 17 | Pahoa Cave(s) (segmentation??) | Hawaii | Hawaii | 9.942 | 16000.1 | 1149.9 | 350.5 | Dr. Stephen Smith reports that this cave could be as short as about 2 miles long now, due to plugging and segmentation by the 2018 Kilauea 61g lava flows. | 5/16/2022 |
| L | 18 | Manu Nui Lava Tube | Hawaii | Hawaii | 2.15 | 3460.1 | 1143 | 348.4 | NSS NEWS V65N10P21 | 9/16/2022 |
| - | 19 | Ellisons Cave | Georgia | Walker | 12.127 | 19516.51 | 1063 | 324 | Georgia Underground V24N1 | 3/1/1987 |
| L | 20 | Ainahou Ranch Cave | Hawaii | Hawaii | 4.418 | 7110 | 1059.7 | 323 | Stephan Kempe e-mail | 4/19/2022 |
| - | 21 | Carlsbad Cavern (C.C.N.P.) | New Mexico | Eddy | 39.5 | 63569.09 | 1035 | 315.47 | Vidio on liine | 12/19/2022 |
| L | 22 | Keamoku | Hawaii | Hawaii | 4.115 | 6623 | 1030 | 314 | Gerald Favre, HSS no 35, pg 13, 2014 | 1/14/2022 |
| - | 23 | Tickle Me Turtle Cave (Portal 3) | Montana | Flathead | 0.761 | 1224.71 | 1027 | 313.03 | Jason Ballensky e-mail | 8/16/2022 |
| L | 24 | Kahawaihapapa Cave | Hawaii | Maui | 0.586 | 943 | 1023.6 | 312 | Bob Richards e-mail | 8/20/2022 |
| - | 25 | Silvertip Cave System | Montana | Flathead | 10.16 | 16350.94 | 997.4 | 304 | Jason Ballensky e-mail | 5/22/2022 |
| - | 26 | Scapegoat Cave System (Green Fork Falls Cave - Kathys Icebox Cave) | Montana | Lewis & Clark | 3.3 | 5310.84 | 977 | 297.79 | Michael McEachern FB | 10/21/2022 |
| L | 27 | Kipuka Kanohina Cave (Kula Kai Caverns) | Hawaii | Hawaii | 26.104 | 42010 | 944.9 | 288 | Kanohina Data Manager - Tomislav Gracanin e-mail | 6/19/2022 |
| - | 28 | Bull Cave | Tennessee | Blount | 2.272 | 3656.43 | 924 | 281.64 | Mark Lassiter | 8/1/1998 |
| - | 29 | Nielsons Well / Cave | Utah | Cache | 1.42 | 2285.27 | 880 | 268.22 | www.caves.org/grotto/timpgrotto/ | 1/16/2022 |
| L | 30 | Kauhako Crater (Vauhako) (Lava Pit) | Hawaii | Molokai | 0 | 0 | 865.2 | 263.7 | Earl Neller via Halliday(Water filled) | 7/1/1997 |
| L | 31 | Na One Pit(Pit 6083,Pelee's Abyss) (Lava Pit) | Hawaii | Hawaii | 0 | 0 | 861.9 | 262.7 | Dave Bunnell | 4/1/1994 |
| - | 32 | Little Brush Creek Cave | Utah | Uintah | 6.25 | 10058.4 | 858 | 202 | Matt Paulson FB | 7/22/2022 |
| - | 33 | Big Brush Creek Cave | Utah | Uintah | 6.16 | 9913.56 | 858 | 261.52 | Matt Paulson FB | 1/22/2022 |
| - | 34 | Rich Mountain Blowhole | Tennessee | Blount | 2.185 | 3516.42 | 840 | 256.03 | Tenn.Cave Survey | 2/15/2022 |
| L | 35 | Hookena Civil Defense Cave | Hawaii | Hawaii | 5.296 | 8523 | 839.9 | 256 | Peter Bosted e-mail | 8/18/2022 |
| - | 36 | Papoose Cave | Idaho | Idaho | 3.25 | 5230.37 | 833 | 253.9 | Daryl Greaser e-mail | 1/19/2022 |
| - | 37 | Jewel Cave (N.M.) | South Dakota | Custer | 212.43 | 341872.94 | 832.1 | 253.62 | Dan Austin e-mail | 4/22/2022 |
| - | 38 | Chestnut Ridge Cave System | Virginia | Bath | 22.063 | 35507 | 813.6 | 248 | BCCS | 10/19/2022 |
| - | 39 | Sunray - Sunset Cave System | Montana | Flathead | 0.832 | 1338.97 | 801 | 244.14 | NSS Long and Deep Cave List | 6/17/2022 |
| - | 40 | Viva Silva Cave | Alaska | Heceta Island | 0 | 0 | 797 | 242.93 | Marcel LaPerriere e-mail | 8/1/1998 |
| L | 41 | Big Red Cave | Hawaii | Hawaii | 2.241 | 3606.5 | 759.8 | 231.6 | Doug Medville e-mail | 9/16/2022 |
| - | 42 | Spanish Cave | Colorado | Custer | 1.09 | 1754.18 | 741 | 225.86 | Richard Rhinehart e-mail | 5/16/2022 |
| L | 43 | Ka'eleku Caverns | Hawaii | Maui | 1.772 | 2851.8 | 737.9 | 224.9 | Bob Richards e-mail | 12/1/1999 |
| - | 44 | Hellhole System | West Virginia | Pendleton | 43.6 | 70167.4 | 737 | 224.64 | GVKS | 2/20/2022 |
| - | 45 | Sugar Run Cave System | Virginia | Giles | 22.55 | 36291 | 718 | 218.85 | VSS | 2/15/2022 |
| - | 46 | Simmons Mingo - My Cave System | West Virginia | Rand./Pocahon. | 6.7 | 10782.6 | 683 | 208.18 | Bob Thrun | 6/1/1982 |
| - | 47 | Overholts Blowing Cave | West Virginia | Pocahontas | 7.811 | 12570.59 | 666 | 203 | Gary Storrick | 1/16/2022 |
| - | 48 | Dorton Knob Smoke Hole | Tennessee | Cumberland | 1.068 | 1717.98 | 660 | 201.17 | TCS - Chris Kerr | 1/1/1996 |
| - | 49 | SnowHole | Alaska | P.O.W. Island | 0.516 | 830.42 | 652 | 198.73 | NSS NEWS V69N1P26 | 1/16/2022 |
| - | 50 | Lost Creek Siphon | Montana | Park | 0.189 | 304.17 | 650 | 198.12 | Jay Kennedy e-mail | 2/15/2022 |
| L | 51 | Beach Park Cave | Hawaii | Hawaii | 4.705 | 7572 | 649.6 | 198 | Peter Bosted e-mail | 8/18/2022 |
| - | 52 | Butler-Sinking Creek System | Virginia | Bath | 18.06 | 29064.75 | 644.3 | 196.38 | Tont Canike email | 9/16/2022 |
| - | 53 | Fossil Mtn.Ice Cave - Wind Cave System | Wyoming | Teton | 2.9 | 4667.1 | 644 | 196.29 | NSS Conv. 1988 | 5/1/1988 |
| - | 54 | Flathead Alps Cave | Montana | Powell | 0.093 | 150 | 642 | 195.68 | Philip Rykwalder e-mail | 8/16/2022 |
| - | 55 | Wind Cave (N.P.) | South Dakota | Custer | 161.7 | 260230.92 | 636 | 193.85 | Macrc Ohms FB | 3/22/2022 |
| - | 56 | Jewett II Cave | Tennessee | Cumberland | 3.349 | 5389.69 | 636 | 193.85 | Charles Clark | 7/1/1986 |
| - | 57 | MeanderBelt Cave | Montana | Flathead | 0.723 | 1163.56 | 633 | 192.94 | Michael McEachem e-mail | 4/17/2022 |
| L | 58 | Lower Delissea | Hawaii | Hawaii | 2.208 | 3553.4 | 632.9 | 192.9 | Peter Bosted e-mail | 9/16/2022 |
| - | 59 | Rawhide Horror Hole | Tennessee | Franklin | 1.136 | 1828.21 | 630 | 192.02 | Tenn.Cave Survey | 2/15/2022 |
| - | 60 | Doe Mountain Cave | Virginia | Giles | 2.712 | 4364.54 | 628 | 191.41 | Bill Balfour e-mail | 2/1/1999 |
| - | 61 | El Capitan Pit | Alaska | P.O.W. Island | 0.211 | 339.57 | 625 | 190.5 | Georgia Underground V28N4 | 5/1/1992 |
| L | 62 | Lama Lua System | Hawaii | Hawaii | 3.447 | 5547.4 | 623 | 189.9 | Doug Medville e-mail | 4/17/2022 |
| - | 63 | Double Bopper Cave | Arizona | Coconino | 40.6 | 65339 | 618 | 188.37 | Shane McCurdy e-mail | 3/19/2022 |
| - | 64 | Jewett I Cave | Tennessee | Cumberland | 1.788 | 2877.51 | 615 | 187.45 | Charles Clark | 7/1/1986 |
| - | 65 | Friars Hole Cave System | West Virginia | Green./Pocoho. | 50.51 | 81287.97 | 613 | 186.84 | West Virginia Cave V40N3 | 5/22/2022 |
| L | 66 | Keala Cave | Hawaii | Hawaii | 5.41 | 8706.6 | 609.9 | 185.9 | Stephan Kempe, IUS Com. on Vol.Cave NL | 12/1/1999 |
| - | 67 | Devils Hole | Nevada | Nye | 0 | 0 | 605 | 184.4 | Dan Smith FB | 7/22/2022 |
| - | 68 | Thompson Valley Cave System (Corkscrew Cave) | Virginia | Tazewell | 8.6 | 13841 | 603.7 | 184 | VSS | 11/19/2022 |
| - | 69 | MOS Cave / Obscure Magnificence (2697) | Alabama | Jackson | 1.001 | 1610.95 | 603 | 183.79 | Deep Caves of TAG, J.Stembel | 10/16/2022 |
| - | 70 | Dulaneys Cave | Virginia | Giles | 4.435 | 7138 | 601 | 183.18 | VSS | 5/16/2022 |
| L | 71 | The Great One Crack (Lava Crack) | Hawaii | Hawaii | 0.439 | 706.5 | 600.1 | 182.9 | NSS NEWS V68N12P9 | 2/15/2022 |
| - | 72 | Great Savannah Cave System | West Virginia | Greenbrier | 51.27 | 82511.07 | 587.9 | 179.2 | Dave & Nick Socky FB | 8/22/2022 |
| - | 73 | Double Date Cave | Montana | Flathead | 1.54 | 2478.39 | 582 | 177.39 | Jason Ballensky e-mail | 12/16/2022 |
| - | 74 | Three Fingers Cave | New Mexico | Eddy | 3.7 | 5954.57 | 581 | 177.09 | Rocky Mountain Caving V8N3P22 | SUM91 |
| - | 75 | Memorial Day Cave | West Virginia | Pendleton | 29.03 | 46719.26 | 579.2 | 176.54 | GVKS | 12/20/2022 |
| - | 76 | Greenhouse Cave | Montana | Flathead | 0 | 0 | 578 | 176.17 | Philip Rykwalder e-mail | 8/16/2022 |
| - | 77 | Lewis and Clark Caverns | Montana | Jefferson | 1.906 | 3067.41 | 577 | 175.87 | The Explorer P34 - Bob Richards | 3/1/1985 |
| - | 78 | Blowing in the Wind Cave | Alaska | P.O.W. Island | 1.144 | 1841.09 | 577 | 175.87 | Alaskan Caver V18N2P24, Carlene Allred | 4/1/1998 |
| - | 79 | Virgin Cave | New Mexico | Eddy | 4.14 | 6662.68 | 573.4 | 174.77 | Paul Burger e-mail | 2/22/2022 |
| - | 80 | Scott Hollow Cave | West Virginia | Monroe | 29.5 | 47475.65 | 571 | 174.04 | WVASS Spring Meeting | 5/16/2022 |
| - | 81 | Tony Sinks - Cox Cave (78) | Alabama | Jackson | 2.367 | 3809.32 | 570 | 173.74 | Georgia Underground V32N4P37 | 9/1/1996 |
| - | 82 | Sorcerer's Cave | Texas | Terrell | 2.181 | 3509.98 | 570 | 173.74 | Texas Speleological Survey via Jerry Atkinson e-mail | 1/16/2022 |
| - | 83 | Youngs Creek Blowhole | Tennessee | Franklin | 1.61 | 2591.04 | 568 | 173.13 | Deep Caves of TAG, John Stembel | 10/16/2022 |
| L | 84 | Keokeo 16S-Y | Hawaii | Hawaii | 1.371 | 2206 | 567.6 | 173 | Peter Bosted e-mail | 8/18/2022 |
| - | 85 | Moon Ray Cave | Montana | Flathead | 0 | 0 | 567 | 172.82 | Philip Rykwalder e-mail | 8/16/2022 |
| - | 86 | Scott's Barn Cave / Bloodstone (907) | Alabama | Jackson | 1.536 | 2471.95 | 563 | 171.6 | Tom Moss | 12/1/1995 |
| L | 87 | Ka'awaloa | Hawaii | Hawaii | 2.018 | 3247 | 561 | 171 | Peter Bosted e-mail | 8/18/2022 |
| - | 88 | Gary Self Pit (290) | Alabama | Jackson | 2.314 | 3724.02 | 560 | 170.69 | ACS | 8/1/1987 |
| - | 89 | Kelly Ridge Cave | Tennessee | Blount | 0.852 | 1371.16 | 559 | 170.38 | TCS - Steve Pierce | 7/1/1986 |
| - | 90 | Bloody Elbow Cave | Alabama | Madison | 1.202 | 1934.43 | 558 | 170.08 | Julie Schenck Brown | 5/16/2022 |
| - | 91 | Hells Below Cave | New Mexico | Eddy | 1.894 | 3048.1 | 550 | 167.64 | Dave Belski e-mail | 3/16/2022 |
| - | 92 | Ain't No Cave (2312) | Alabama | Jackson | 0.742 | 1194.13 | 549 | 167.34 | Speleo Digest | 2/15/2022 |
| - | 93 | Church Cave | California | Fresno | 3.996 | 6430.94 | 547 | 166.73 | David Engel e-mail | 9/1/1999 |
| - | 94 | Paint Rock River Cave (2934) | Alabama | Jackson | 1.817 | 2924.18 | 539 | 164.29 | Deep Caves of TAG, John Stembel | 10/16/2022 |
| - | 95 | Fern Cave (597) | Alabama | Jackson | 15.63 | 25154.05 | 536 | 163.37 | Fern Cave Project | 6/17/2022 |
| - | 96 | Luminary Pit | Tennessee | Bledsoe | 1.371 | 2206.41 | 535 | 163.07 | Buddy Lane | 7/1/1986 |
| - | 97 | The Kids Cave (2410) | Alabama | Jackson | 1.042 | 1676.94 | 530 | 161.54 | NSS News | 6/1/1989 |
| L | 98 | Kaupulehu Crater Cave (part of Manu Nui ?) | Hawaii | Hawaii | 0.676 | 1087.9 | 529.9 | 161.5 | Peter Bosted e-mail | 1/16/2022 |
| - | 99 | Hang 'Em High Cave | Tennessee | Marion | 3.665 | 5898.25 | 528 | 160.93 | NSS News V50N1P6-18 | 1/1/1992 |
| - | 100 | Stolen Well / Davis Cove Cave (1518) | Alabama | Jackson | 1.291 | 2077.66 | 528 | 160.93 | Georgia Underground V29N3 | 9/1/1992 |
| L | 101 | Kaupulehu System | Hawaii | Hawaii | 2.714 | 4367 | 526.9 | 160.6 | Doug Medville e-mail | 12/20/2022 |
| - | 102 | Wind Cave (Wolfpen-Hollow Blowhole) | West Virginia | Grant | 5.17 | 8320.31 | 526 | 160.32 | WVASS Database | 5/16/2022 |
| - | 103 | Grunge Plunge | Tennessee | Washington | 1.136 | 1828.21 | 526 | 160.32 | Clinton Elmore on Facebook | 7/16/2022 |
| - | 104 | Engle Double Pit (266) | Alabama | Jackson | 4.598 | 7399.76 | 520 | 158.5 | Alabama Cave Survey | 5/17/2022 |
| - | 105 | Arabica-Big Fatty Cave System | Alaska | Heceta Island | 1.412 | 2272.39 | 519 | 158.19 | Alaskan Caver V19N2P7 , Steve Lewis | 4/1/1999 |
| - | 106 | Bullpasture Mountainside Cave | Virginia | Highland | 0.376 | 605.11 | 519 | 158.19 | Rick Lambert e-mail | 10/16/2022 |
| L | 107 | The Great Two Crack (Lava Crack) | Hawaii | Hawaii | 0.301 | 484.4 | 518 | 157.9 | NSS NEWS V68N12P15 | 2/15/2022 |
| - | 108 | Jewett III | Tennessee | Cumberland | 2.52 | 4055.1 | 515.1 | 157 | Hinch Mountain Project | 9/19/2022 |
| L | 109 | Many Wall Cave | Hawaii | Hawaii | 1.93 | 3106 | 515.1 | 157 | Doug Medville, HSS no. 32, pg 6, 2012 | 1/21/2022 |
| L | 110 | (Breached) Many Wall Cave | Hawaii | Hawaii | 1.93 | 3106 | 515.1 | 157 | Doug Medville e-mail | 3/16/2022 |
| - | 111 | Goufffre | Tennessee | Cumberland | 2.131 | 3429.51 | 515 | 156.97 | TCS | 1/1/1996 |
| - | 112 | Mossy Abyss | Alaska | Dall Island | 0.143 | 230.14 | 515 | 156.97 | Alaskan Caver | 6/16/2022 |
| - | 113 | McBride's Cave (1345) | Alabama | Jackson | 1.753 | 2821.18 | 513 | 156.36 | Georgia Underground V32N4P38 | 9/1/1996 |
| - | 114 | Small Cave (1096) | Alabama | Jackson | 0.957 | 1540.14 | 513 | 156.36 | Georgia Underground V24N1 | 3/1/1987 |
| - | 115 | Wilkson Hollow Horror Hole | Tennessee | Franklin | 2.259 | 3635.51 | 512 | 156.06 | TCS | 1/1/1996 |
| - | 116 | Elmos Canyon (1735) | Alabama | Jackson | 0.93 | 1496.69 | 512 | 156.06 | Georgia Underground V32N4P37 | 9/1/1996 |
| - | 117 | Summers Double Pot (1538) | Alabama | Jackson | 0.636 | 1023.54 | 512 | 156.06 | Georgia Underground V32N4P37 | 9/1/1996 |
| - | 118 | Rendezous Peak Cave | Wyoming | Teton | 0.258 | 415.21 | 512 | 156.06 | Caves of Wyoming | 3/1/1976 |
| - | 119 | Potential Pit / Langston Cave (1558) | Alabama | Jackson | 0.758 | 1219.88 | 510 | 155.45 | Georgia Underground V29N3P18-19 | 9/1/1992 |
| - | 120 | Newton Cave | Washington | King | 0.189 | 304.17 | 510 | 155.45 | David Mischke e-mail | 5/16/2022 |
| - | 121 | Lilburn Cave (N.P.) | California | Tulare | 22.17 | 35679 | 508 | 154.84 | Jed Mosenfelder e-mail | 1/19/2022 |
| - | 122 | Sipapu Caverns | Arizona | Coconino | 0 | 0 | 504 | 153.62 | NSS Long and Deep Cave List | 6/17/2022 |
| - | 123 | Mad As A Wet Hen Pit (2147) | Alabama | Jackson | 0.86 | 1384.04 | 502 | 153.01 | Deep Caves of TAG, John Stembel | 10/16/2022 |
| - | 124 | Siberian Sword Cave | Alaska | Heceta Island | 0.2 | 321.87 | 501 | 152.7 | Marcel LaPerriere e-mail | 8/1/1998 |
| - | 125 | Microwave-A-Hole System (1927) | Alabama | Jackson | 2.652 | 4267.98 | 500 | 152.4 | ACS | 3/1/1985 |
| - | 126 | Cave of the Madonna | New Mexico | Eddy | 1.894 | 3048.1 | 500 | 152.4 | Dave Belski e-mail | 3/16/2022 |
| - | 127 | Hickey Pot | Tennessee | Warren | 1.542 | 2481.61 | 500 | 152.4 | Tenn.Cave Survey | 2/15/2022 |
| - | 128 | Stoned Well (1578) | Alabama | Jackson | 0.511 | 822.37 | 498 | 151.79 | Alabama Cave Survey | 3/1/1985 |
| - | 129 | Fowler Pit 2 / Bleeding Ghyll Cave (655) | Alabama | Jackson | 0.918 | 1477.38 | 497 | 151.49 | Alabama Cave Survey | 3/1/1985 |
| - | 130 | Ram's Horn Cave | Montana | Meagher | 0.9 | 1448.41 | 496 | 151.18 | NSS Conv. | 6/17/2022 |
| UW | 131 | Phantom Springs Cave | Texas | Jeff Davis | 1.948 | 3135.5 | 493 | 150.27 | Texas Speleological Survey via Jerry Atkinson e-mail | 1/16/2022 |
| - | 132 | Illiad / Odyessy Cave System (1568) | Alabama | Jackson | 1.663 | 2676.34 | 493 | 150.27 | ACS | 3/1/1995 |
| - | 133 | Moonprobe Cave | Alaska | Dall Island | 0.133 | 214.04 | 493 | 150.27 | NSS News V53N2P34 | 2/1/1995 |
| - | 134 | Gap Cave System (Cudjo's) (C.G.N.H.P.) | Virginia | Lee | 19.884 | 32000 | 491 | 149.66 | Bob Gulden (CRF) | 4/19/2022 |
| - | 135 | Turkey Roost Cave | West Virginia | Pocahontas | 2.841 | 4572.15 | 490 | 149.35 | WVASS Database | 5/16/2022 |
| - | 136 | Bear-Hanna Cave (2100) | Alabama | Jackson | 1.161 | 1868.45 | 488 | 148.74 | Georgia Underground V32N4P38 | 6/1/1996 |
| - | 137 | Organ Cave System | West Virginia | Greenbrier | 38.452 | 61882.5 | 486 | 148.13 | WVASS Database | 5/16/2022 |
| - | 138 | P-Bar (PeBar) Cave | Wyoming | Big Horn | 1.851 | 2978.9 | 486 | 148.13 | Tomes | 5/17/2022 |
| - | 139 | Vanishing River Cave | New Mexico | - | 0.26 | 418.43 | 485 | 147.83 | Dave Belski e-mail | 3/16/2022 |
| - | 140 | Laurel Caverns | Pennsylvania | Fayette | 4.143 | 6666.89 | 476 | 145.08 | Ryan Maurer e-mail | 7/22/2022 |
| - | 141 | Rumbling Falls Cave. | Tennessee | Van Buren | 16.091 | 25895.95 | 474 | 144.48 | Marion O.Smith per TCS | 2/15/2022 |
| - | 142 | Roaring River | Missouri | Barry | 0.427 | 687 | 472 | 143.87 | FB | 11/21/2022 |
| - | 143 | Bad Medicine Cave | Wyoming | Big Horn | 1.91 | 3073.85 | 472 | 143.87 | Marc Ohms e-mail | 9/1/1999 |
| - | 144 | Spasm Chasm | Tennessee | Marion | 1.441 | 2319.06 | 472 | 143.87 | Tenn.Cave Survey | 2/15/2022 |
| - | 145 | Keystone River Cave | Tennessee | Van Buren | 3.629 | 5840.31 | 471 | 143.56 | Tenn.Cave Survey | 2/15/2022 |
| - | 146 | Tanglefoot Cave | Maryland | Allegany | 1.64 | 2639.32 | 470 | 143.26 | Corey Hackley e-mail | 11/21/2022 |
| - | 147 | Twenty Pound Tick Cave | Colorado | Garfield | 1.08 | 1738.09 | 469 | 142.95 | Rocky Mtn. Caving | SUM93 |
| - | 148 | Guy's Cave (1078) | Alabama | Jackson | 0.82 | 1319.66 | 468 | 142.65 | ACS | 6/17/2022 |
| - | 149 | Hole 19 | Maryland | Allegany | 1.77 | 2848.54 | 466 | 142.04 | Donnie Cams FB | 12/20/2022 |
| L | 150 | Under the Wall Cave | Hawaii | Hawaii | 2.736 | 4403.2 | 463.9 | 141.4 | Doug Medville e-mail | 10/1/1999 |
| - | 151 | Seabolt-Spence Cave System | Virginia | Smyth | 0.587 | 945 | 462.6 | 141 | VSS | 11/19/2022 |
| - | 152 | Cairn Blowhole (Pit) (2290) | Alabama | Jackson | 1.515 | 2438.16 | 460 | 140.21 | Georgia Underground V32N4P38 | 9/1/1996 |
| - | 153 | Baby Hog Horror Hole | Tennessee | Franklin | 0.663 | 1067 | 460 | 140.21 | TDCL | 9/1/1992 |
| - | 154 | Deep Cave | New Mexico | Eddy | 0.601 | 967.22 | 460 | 140.21 | Dave Belski e-mail | 3/16/2022 |
| - | 155 | Thunder Hole (1435) | Alabama | Jackson | 0.323 | 519.82 | 460 | 140.21 | Georgia Underground V32N4P38 | 9/1/1996 |
| L | 156 | Middle Hapuu | Hawaii | Hawaii | 1.304 | 2098.6 | 460 | 140.2 | Peter Bosted e-mail | 9/16/2022 |
| - | 157 | Polygamys End Cave | Utah | Cache | 0.138 | 222.09 | 459 | 139.9 | www.caves.org/grotto/timpgrotto/ | 1/16/2022 |
| - | 158 | Sinking Cove Cave System | Tennessee | Franklin | 5.35 | 8609.99 | 457 | 139.29 | Rick Buice | 9/1/1989 |
| - | 159 | Buckeye Cave (779) | Alabama | Jackson | 1.034 | 1664.06 | 457 | 139.29 | Georgia Underground V24N1 | 3/1/1987 |
| - | 160 | Gourdneck Cave | Tennessee | Marion | 3.584 | 5768.64 | 456 | 138.99 | Map | 2/21/2022 |
| - | 161 | Tumbling Rock Cave (171) (Saltpeter) | Alabama | Jackson | 6.022 | 9691.47 | 454 | 138.38 | Georgia Underground V32N4P38] | 9/1/1996 |
| - | 162 | Blunder Hole (3333) | Alabama | Jackson | 0.72 | 1158.73 | 453 | 138.07 | Georgia Underground V31N4P3 | 11/1/1995 |
| - | 163 | Wash Pot (1353) | Alabama | Jackson | 0.321 | 516.6 | 453 | 138.07 | Georgia Underground V29N3P18-19 | 9/1/1992 |
| - | 164 | Sinuos System Cave | Alaska | Heceta Island | 0 | 0 | 453 | 138.07 | Marcel LaPerriere e-mail | 9/1/1998 |
| - | 165 | Gilley Cave | Virginia | Lee | 4.545 | 7314.47 | 450 | 137.16 | VSS | 5/17/2022 |
| - | 166 | Hairy Pit / Flowing Spring Cave (847) | Alabama | Jackson | 1.515 | 2438.16 | 450 | 137.16 | Georgia Underground V32N4P38 | 9/1/1996 |
| - | 167 | Doodlebug Hole / Blowing Cave (195) | Alabama | Jackson | 1.394 | 2243.43 | 450 | 137.16 | ACS | 5/16/2022 |
| L | 168 | Lower Hualalai Ranch Cave | Hawaii | Hawaii | 2.19 | 3525 | 448.2 | 136.6 | Nevin Davis, HSS No. 19, Pg 13, 2006. Segment length calculated by Doug Medville and John Rosenfeld from survey files in 2018 | 1/21/2022 |
| - | 169 | Bird Horror Hole (2508) | Alabama | Jackson | 0.443 | 712.94 | 447 | 136.25 | Georgia Underground V29N3P18-19 | 9/1/1992 |
| - | 170 | Walking Fern Pit (1598) | Alabama | Jackson | 0.376 | 605.11 | 447 | 136.25 | Georgia Underground V32N4P38 | 9/1/1996 |
| - | 171 | Hummel's Cave | California | Fresno | 0.185 | 297.73 | 447 | 136.25 | Bob Richards | 1/1/1990 |
| L | 172 | Redemption Cave | Hawaii | Hawaii | 1.708 | 2749 | 446.2 | 136 | Doug Medville e-mail | 3/18/2022 |
| G | 173 | Triple Engle Pit . | New Mexico | De Baca | 1.544 | 2485 | 442 | 134.7 | Dave Belski e-mail | 3/16/2022 |
| - | 174 | Fort Stanton Cave | New Mexico | Lincoln | 44.57 | 71728.46 | 441 | 134.42 | Lee H.Skinner e-mail | 7/22/2022 |
| - | 175 | Real Well | Tennessee | Marion | 0.758 | 1219.88 | 441 | 134.42 | 1998 NSS Convention | 8/1/1998 |
| - | 176 | Schoolhouse | West Virginia | Pendleton | 1.62 | 2607.14 | 439 | 133.81 | Gordon Brace e-mail | 10/16/2022 |
| - | 177 | Whiteoak Blowhole | Tennessee | Blount | 1.153 | 1855.57 | 439 | 133.81 | Georgia Underground V32N4P38 | 9/1/1996 |
| - | 178 | Mill Creek Crystal Cave | Montana | Park | 1.35 | 2172.61 | 435 | 132.59 | James Cummins e-mail | 8/16/2022 |
| - | 179 | Shinaberry Cave | West Virginia | Pocahontas | 1.001 | 1610.95 | 435 | 132.59 | WVASS | 6/17/2022 |
| - | 180 | Bennett Cove Cave (2174) | Alabama | Jackson | 0.613 | 986.53 | 435 | 132.59 | ACS | 6/16/2022 |
| - | 181 | French Creek Cave | Montana | Beaverhead | 1.831 | 2946.71 | 434 | 132.28 | Caves of Montana | 3/1/1978 |
| - | 182 | Jim Cave (273) | Alabama | Jackson | 0.585 | 941.47 | 432 | 131.67 | Georgia Underground V32N4P38 | 9/1/1996 |
| - | 183 | Twenty Three Dollar Pit (996) | Alabama | Jackson | 0.38 | 611.55 | 432 | 131.67 | Georgia Underground V29N3P18-19 | 9/1/1992 |
| - | 184 | Mill Hole (745) | Alabama | Jackson | 1.114 | 1792.81 | 431 | 131.37 | Georgia Underground V29N3P18-19 | 9/1/1992 |
| - | 185 | Battered Bar Cave | Virginia | Bath | 1.61 | 2591.04 | 430.9 | 131.34 | Nathan Farrar e-mail | 7/17/2022 |
| - | 186 | Bucks Pocket Cave (432) | Alabama | Jackson | 1.136 | 1828.21 | 430 | 131.06 | ACS | 6/16/2022 |
| UW | 187 | Cathedral-Falmouth System | Florida | Suwannee | 11.74 | 18893.7 | 429.1 | 130.8 | Andrew Pitkin e-mail | 1/22/2022 |
| - | 188 | Solution Rift | Tennessee | Marion | 1.013 | 1630.27 | 429 | 130.76 | TDCL | 9/1/1992 |
| - | 189 | Crystal Palace Cave | Alaska | P.O.W. Island | 0 | 0 | 429 | 130.76 | NSS News | - |
| - | 190 | El Capitan Cave | Alaska | P.O.W. Island | 2.367 | 3809.32 | 428 | 130.45 | NSS Caves Files - Dick Blenz | 10/16/2022 |
| - | 191 | Pig Hole | Virginia | Giles | 1.18 | 1899.03 | 428 | 130.45 | VSS | 2/1/1989 |
| - | 192 | Kimble Pit | West Virginia | Pendleton | 9.22 | 14838.15 | 427 | 130.14 | Corey Hackley e-mail | 11/21/2022 |
| - | 193 | Scott Cave | West Virginia | Monroe | 1 | 1609.34 | 426 | 129.84 | Mike Dore | 10/1/1985 |
| - | 194 | Better Forgotten Cave | Virginia | Highland | 0.947 | 1524.05 | 426 | 129.84 | BCCS | 7/1/1995 |
| - | 195 | Cyclops Cave | Virginia | Russell | 7.08 | 11394.16 | 424 | 129.24 | J.Christie e-mail | 6/16/2022 |
| - | 196 | Dark Well (1945) | Alabama | Jackson | 0.439 | 706.5 | 421 | 128.32 | Georgia Underground V29N3P18-19 | 9/1/1992 |
| - | 197 | Sewanee Plunge | Tennessee | Franklin | 0.947 | 1524.05 | 420 | 128.02 | Georgia Underground V32N4P38 | 9/1/1996 |
| - | 198 | Reaper's Rockpile (gravity-slide cave) | Montana | Teton | 0.142 | 228.53 | 419 | 127.71 | Jason e-mail | 10/16/2022 |
| - | 199 | Paradox Cave | Tennessee | VanBuren | 1.705 | 2743.93 | 418 | 127.41 | Georgia Underground V32N4P38 | 9/1/1996 |
| - | 200 | Warner Noisy Blower | West Virginia | Pendleton | 0.781 | 1256.93 | 417.5 | 127.25 | Dwight Livingston e-mail | 12/19/2022 |
| - | 201 | Vast Caverns (1860) | Alabama | Jackson | 0.305 | 490.85 | 417 | 127.1 | Georgia Underground V29N3P18-19 | 9/1/1992 |
| - | 202 | Crystal 67 Cave | California | Tulare | 0.387 | 622.82 | 415 | 126.49 | California Caver V33N1 | 3/1/1982 |
| - | 203 | Sherwood Spring Cave | Tennessee | Franklin | 0.723 | 1163.12 | 414 | 126.19 | Deep Caves of TAG, John Stembel | 10/16/2022 |
| - | 204 | Grim Rock Cave | Virginia | Giles | 0.422 | 679 | 413 | 125.88 | VSS | 6/17/2022 |
| - | 205 | The Cave That Summer Forgot | Montana | Flathead | 0.334 | 537.52 | 412 | 125.58 | Jason Ballensky e-mail | 8/16/2022 |
| - | 206 | Trice Hollow Pit (2012) | Alabama | Jackson | 0.762 | 1226.32 | 411 | 125.27 | Georgia Underground V29N3P18-19 | 9/1/1992 |
| - | 207 | LilyGuard Cave | Montana | Judith Basin | 0.41 | 659.83 | 410 | 124.97 | Rick Brinkman e-mail | 5/16/2022 |
| - | 208 | Will's Welch Well (1748) | Alabama | Jackson | 0.253 | 407.16 | 410 | 124.97 | Deep Caves of TAG, John Stembel | 10/16/2022 |
| - | 209 | Twist of Fate Pit | Alabama | Jackson | 0.089 | 143.23 | 408 | 124.36 | NSS News V72N1 | 1/16/2022 |
| - | 210 | Mammoth Cave System (N.P.) | Kentucky | Ed./Hart/Bar. | 420 | 675924.48 | 407.2 | 124.1 | CRF / CKKC +/-5 MILES | 10/21/2022 |
| UW | 211 | Weeki Wachee Spring | Florida | Hernando | 6.792 | 10930 | 407 | 124.05 | Andrew Pitkin e-mail | 10/19/2022 |
| - | 212 | Breathing Cave | Virginia | Bath | 6.74 | 10847 | 406.8 | 124 | Gangsta Mappers | 1/18/2022 |
| - | 213 | Russell Cave (N.M.) (169) | Alabama | Jackson | 11.605 | 18675.71 | 405.8 | 123.7 | Jason Richards | 11/17/2022 |
| L | 214 | Wooden Ladder Cave | Hawaii | Hawaii | 0.758 | 1219.9 | 405.8 | 123.7 | Doug Medville | 1/16/2022 |
| - | 215 | Sub-Solomon Cave | Tennessee | Franklin | 0.711 | 1144.24 | 405 | 123.44 | TCS | 2/15/2022 |
| - | 216 | Water Well (1747) | Alabama | Jackson | 0.554 | 891.58 | 402 | 122.53 | Georgia Underground V29N3P18-19 | 9/1/1992 |
| - | 217 | Wet Cave / Above (Well) Wet Cave | Tennessee | Franklin | 1.414 | 2275.61 | 401 | 122.22 | Speleonews V34N3 | 6/1/1990 |
| - | 218 | Fort-Pebbles Cave | Tennessee | Franklin | 1.234 | 1985.93 | 401 | 122.22 | Tenn.Cave Survey | 2/15/2022 |
| - | 219 | Oregon Caves | Oregon | Josephine | 3.03 | 4876.31 | 400 | 121.92 | Steve Knutson | 1/1/1985 |
| - | 220 | Main Well | Tennessee | Marion | 1.326 | 2133.99 | 400 | 121.92 | Deep Caves of TAG, John Stembel | 10/16/2022 |
| - | 221 | Icy Fate Cave | Alaska | Heceta Island | 0.623 | 1002.62 | 400 | 121.92 | Marcel LaPerriere e-mail | 8/1/1998 |
| - | 222 | Mega Well (2310) | Alabama | Jackson | 0.506 | 814.33 | 400 | 121.92 | ACS | 6/16/2022 |
| L | 223 | Upper Owl Cave | Hawaii | Hawaii | 1.948 | 3135 | 399 | 121.6 | Doug Medville e-mail | 4/17/2022 |
| L | 224 | Coffee Cave | Hawaii | Hawaii | 0.705 | 1134.6 | 397 | 121 | Doug Medville e-mail | 2/15/2022 |
| - | 225 | Black Abyss (Palute Cave) | Arizona | Coconino | 0.134 | 215 | 393.7 | 120 | Nicolas Barth e-mail | 12/20/2022 |
| L | 226 | Caterpillar Cave | Hawaii | Hawaii | 1.058 | 1703 | 393.7 | 120 | Doug Medville | 3/18/2022 |
| - | 227 | Middle Earth Cave | West Virginia | Greenbrier | 1.241 | 1997.96 | 389.7 | 118.78 | WVASS Bulletin #24 | 6/20/2022 |
| - | 228 | Wizard's Well Cavern | Texas | Terrell | 1.247 | 2006.85 | 388 | 118.26 | Texas Speleological Survey via Jerry Atkinson e-mail | 1/16/2022 |
| - | 229 | Sinnett - Thorn Mtn. Cave System | West Virginia | Pendleton | 2.329 | 3748.16 | 386 | 117.65 | Paul Stevens | 7/1/1979 |
| - | 230 | Walt Allen (Baxters) Cave | West Virginia | Pocahontas | 0.881 | 1417.83 | 385 | 117.35 | WVASS | 2/1/1981 |
| - | 231 | Stagebarn Crystal Cave | South Dakota | Meade | 11.371 | 18299.89 | 383.6 | 116.92 | Derek Wolfe e-mail | 7/22/2022 |
| - | 232 | Marvel Cave | Missouri | Stone | 1.27 | 2043.87 | 383 | 116.74 | M.S.S. Hoffman | 2/15/2022 |
| - | 233 | Cave Mtn. Cave | West Virginia | Pendleton | 2.2 | 3540.56 | 382 | 116.43 | Bob Gulden | 6/16/2022 |
| L | 234 | Two Owl Cave | Hawaii | Hawaii | 3.132 | 5040 | 381.9 | 116.4 | Peter Bosted via Doug Medville e-mail | 4/17/2022 |
| - | 235 | Run to the Mill (Bore Hole) Cave | Tennessee | Cumberland | 2.926 | 4708.94 | 381 | 116.13 | Buddy Lane | 7/1/1986 |
| - | 236 | Skydusky Hollow Cave System (Newberry - Bane - Buddy Penley Cave) | Virginia | Bland | 9 | 14484.1 | 380 | 115.82 | Ed Devine | 11/21/2022 |
| - | 237 | Leandras Cave | Arizona | Coconino | 9.547 | 15364.41 | 378 | 115.21 | map at park Headquarters via Greg e-mail | 6/16/2022 |
| UW | 238 | Goodenough Spring | Texas | Val Verde | 0.111 | 178.64 | 377 | 114.91 | Texas Speleological Survey via Jerry Atkinson e-mail | 1/16/2022 |
| - | 239 | Cottonwood Cave | New Mexico | Eddy | 2.223 | 3577.57 | 370 | 112.78 | Dave Belski e-mail | 3/16/2022 |
| - | 240 | Poia Lake Cave | Montana | Glacier | 1.038 | 1670.5 | 370 | 112.78 | Alpine Karst V2P67-85 | 6/16/2022 |
| - | 241 | Banes Spring Cave | Virginia | Bland | 3.86 | 6212.1 | 368.8 | 112.4 | Ed Devine | 11/21/2022 |
| - | 242 | Camps Gulf Cave (Saltpeter) | Tennessee | Van Buren | 7.807 | 12564.15 | 368 | 112.17 | Deep Caves of TAG, John Stembel | 10/16/2022 |
| - | 243 | Grassy Cove Saltpetre Cave (Saltpeter) | Tennessee | Cumberland | 7.893 | 12702.55 | 367 | 111.86 | Deep Caves of TAG, John Stembel | 10/16/2022 |
| - | 244 | Robinson Ridge Saltpeter Cave (Saltpeter) | Tennessee | Cannon /Coffee | 3.696 | 5948.14 | 365 | 111.25 | Tenn.Cave Survey | 2/15/2022 |
| L | 245 | Keokeo 8D-16J | Hawaii | Hawaii | 1.253 | 2017 | 362.5 | 110.5 | Peter Bosted HSS 2016 no. 39 (note #2); Update T. Gracanin | 1/21/2022 |
| - | 246 | Whitaker Sink | Montana | Judith Basin | 0.239 | 384 | 360.9 | 110 | 2018 NSS Convention Guide Book | 7/10/1905 |
| L | 247 | Kaumana Cave | Hawaii | Hawaii | 2.026 | 3260 | 360.6 | 109.9 | Peter Bosted 1 Jun 2019 email to T Gracanin | 6/19/2022 |
| - | 248 | Geiger Cave / Houston Hollow (459) | Alabama | Jackson | 2.063 | 3320.08 | 360 | 109.73 | Deep Caves of TAG, John Stembel | 10/16/2022 |
| - | 249 | New River Cave | Virginia | Giles | 5.293 | 8518.26 | 359 | 109.42 | Tim Kilby | 6/16/2022 |
| - | 250 | Starnes Cave | Virginia | Giles | 4.4 | 7081.11 | 359 | 109.42 | VSS Long & Deep Cave Lists | 2/15/2022 |
| L | 251 | Motheleum Cave | Hawaii | Hawaii | 0.777 | 1251 | 357.6 | 109 | Doug Medville | 3/18/2022 |
| - | 252 | Heart of Gould | Tennessee | White | 5.296 | 8523.43 | 356 | 108.51 | Zeke McKee e-mail | 1/22/2022 |
| - | 253 | Qalgal Cave | Montana | Flathead | 0.493 | 794 | 353 | 107.6 | 2018 NSWSW Convention Guide Book | 7/10/1905 |
| - | 254 | Flower Pot | West Virginia | Randolph | 3.689 | 5936.87 | 352 | 107.29 | WVASS Database | 5/16/2022 |
| UW | 255 | Wakulla-Leon Sinks Cave System | Florida | Leon/Wakulla | 35.22 | 56681.1 | 350 | 106.68 | Casey McKinlay e-mail | 3/20/2022 |
| - | 256 | Nunley Mtn.Cave System (Maria Angela Grotto) | Tennessee | Grundy | 15.08 | 24268.91 | 350 | 106.68 | David Parr per TCS | 2/15/2022 |
| - | 257 | Byer's Cave System | Georgia | Dade | 5.5 | 8851.39 | 350 | 106.68 | Grorgia Underground V24N1 | 3/1/1987 |
| - | 258 | Millers Cove Cave | Virginia | Roanoke | 2.5 | 4023.36 | 350 | 106.68 | Phil Lucas e-mail | 7/16/2022 |
| UW | 259 | Sally Ward Cave | Florida | Wakulla | 1.364 | 2195.15 | 350 | 106.68 | Caves and Karst of Florida, 2008 NSS Convention | 7/16/2022 |