USA DEEPEST CAVES   Compiled by: Bob Gulden - May 18, 2016
Caves Mapped/Surveyed with 400+ feet of vertical
Send updates and corrections to caverbob@aol.com
The NSS Geo2 Long & Deep Caves Web Site is at http://www.caverbob.com           Copyright 2016 NSS Geo2, Bob Gulden NSS#13188LF
Do not ask for cave locations, I will not give them out.  
LENGTH LENGTH DEPTH DEPTH
# CAVE  NAME STATE COUNTY MILES METERS FEET METERS SOURCE DATE
1 Kazumura Cave                     (Lava Tube) Hawaii Hawaii 40.700 65500 3614 1101.5 HSS Newsletter N9P7 06/01
2 Delissea Cave System (Lava Tube) Hawaii Hawaii 12.241 19700 2168 660.8 Doug Medville e-mail Feb-16
3 Umi'i Manu System                 (Lava Tube) Hawaii Hawaii 2.415 3887 1869 569.7 Doug Medville 02/00
4 Tears of the Turtle Cave Montana Flathead 1.167 1878 1629 496.6 NSS News V66N2P16 Feb-08
5 Hue Hue Cave                      (Lava Tube) Hawaii Hawaii 6.711 10800 1623 494.7 Stephan Kempe 10/99
6 Lechuguilla Cave   (C.C.N.P.) New Mexico Eddy 138.300 222572 1604 488.9 Stan Allison e-mail Jun-13
7 Virgil The Turtle's Great House Cave Montana Flathead 1.022 1645 1586 483.4 Bodenhamer, Ballensky, Rykwalder, Sainsbury via e-mail Jul-06
8 Columbine Crawl Wyoming Teton 2.301 3703 1551 472.7 Warren Anderson e-mail 01/01
9 Hualalai Ranch Cave               (Lava Tube) Hawaii Hawaii 17.265 27785 1449 441.7 Doug Medville e-mail Mar-07
10 Emesine Cave (1881 System)        (Lava Tube) Hawaii Hawaii 12.890 20744 1433 436.8 Don Coons e-mail 03/02
11 Great EX(pectations) Cave Wyoming Washakie 7.854 12640 1408 429.2 NSS News V44N6 (Peter Shifflett) 06/86
12 Main Drain Cave Utah Cache 2.040 3283 1293 394.1 Jon Jasper, Brandon Kowallis, Dave Shurtz Feb-14
13 Omega System Virginia Wise 29.430 47363 1263 385.0 Mike Ficco e-mail Jun-14
14 Bigfoot Cave California Siskiyou 12.400 19956 1205 367.3 Steve Knutson 12/90
15 Neffs Canyon Cave Utah Salt Lake 0.760 1223 1163 354.5 www.caves.org/grotto/timpgrotto/ 05/89
16 Pahoa Cave(s) (segmentation??)    (Lava Tube) Hawaii Hawaii 9.942 16000 1150 350.5 Lava Tube Flow e-mails May-05
17 Manu Nui Lava Tube          (Lava Tube) Hawaii Hawaii 2.150 3460 1143 348.4 NSS NEWS V65N10P21 Sep-07
18 Ellisons Cave Georgia Walker 12.127 19517 1063 324.0 Georgia Underground V24N1 03/87
19 Silvertip Cave System Montana Flathead 5.815 9358 1052 320.6 Alpine Karst Sum77
20 Carlsbad Cavern   (C.C.N.P.) New Mexico Eddy 32.350 52062 1035 315.5 Lee H.Skinner e-mail Apr-16
21 Tickle Me Turtle Cave (Portal 3) Montana Flathead 0.761 1225 1027 313.0 Jason Ballensky e-mail Aug-14
22 Ambigua Cave                      (Lava Tube) Hawaii Hawaii 1.202 1934 1006 306.6 Bob Richards via Doug medville e-mail Mar-11
23 Bull Cave Tennessee Blount 2.272 3656 924 281.6 Mark Lassiter 08/98
24 Nielsons Well / Cave Utah Cache 1.420 2285 880 268.2 www.caves.org/grotto/timpgrotto/ 01/03
25 Kauhako Crater  (Vauhako)         (Lava Pit) Hawaii Molokai 0.000 0 865 263.7 Earl Neller via Halliday(Water filled) 7/97
26 Na One Pit(Pit 6083,Pelee's Abyss) (Lava Pit) Hawaii Hawaii 0.000 0 862 262.7 Dave Bunnell 04/94
27 Big Brush Creek Cave Utah Uintah 4.920 7918 858 261.5 www.caves.org/grotto/timpgrotto/ 01/03
28 Rich Mountain Blowhole Tennessee Blount 2.185 3516 840 256.0 Tenn.Cave Survey 02/03
29 Papoose Cave Idaho Idaho 3.250 5230 831 253.3 Tom Miller e-mail 09/98
30 Chestnut Ridge Cave System Virginia Bath 21.260 34215 808 246.3 Gregg Clemmer Jan-16
31 Sunray - Sunset Cave System Montana Flathead 0.832 1339 801 244.1 NSS Long and Deep Cave List 1982
32 Viva Silva Cave Alaska Heceta Island 0.000 0 797 242.9 Marcel LaPerriere e-mail 08/98
33 Kipuka Kanohina (Kula Kai Caverns) (Lava Tube) Hawaii Hawaii 28.700 46188 762 232.3 Bob Richards e-mail Mar-11
34 Big Red Cave                      (Lava Tube) Hawaii Hawaii 2.241 3607 760 231.6 Doug Medville e-mail 09/02
35 Hapu u Cave Hawaii Hawaii 2.584 4159 752 229.2 Doug Medville e-mail Jun-12
36 Spanish Cave Colorado Custer 1.090 1754 741 225.9 Richard Rhinehart e-mail May-13
37 Ka'eleku Caverns                  (Lava Tube) Hawaii Maui 1.772 2852 738 224.9 Bob Richards e-mail 12/99
38 Hellhole System West Virginia Pendleton 41.970 67544 737 224.6 WVASS Database Jun-15
39 Jewel Cave    (N.M.) South Dakota Custer 181.890 292724 723 220.4 Facebook May-16
40 Virgin Cave New Mexico Eddy 2.680 4313 723 220.4 Paul Burger e-mail Aug-10
41 Sugar Run Cave System Virginia Giles 22.500 36210 718 218.8 VSS Long & Deep Cave Lists 02/03
42 Simmons Mingo - My Cave System West Virginia Rand./Pocahon. 6.700 10783 683 208.2 Bob Thrun 06/82
43 Overholts Blowing Cave West Virginia Pocahontas 7.811 12571 666 203.0 Gary Storrick Jan-10
44 Dorton Knob Smoke Hole Tennessee Cumberland 1.023 1646 660 201.2 TCS -  Chris Kerr 01/96
45 Little Brush Creek Cave Utah Uintah 5.933 9548 658 200.6 www.caves.org/grotto/timpgrotto/ 01/03
46 SnowHole Alaska P.O.W. Island 0.516 830 652 198.7 NSS NEWS V69N1P26 Jan-11
47 Lost Creek Siphon Montana Park 0.189 304 650 198.1 Jay Kennedy e-mail 02/02
48 Fossil Mtn.Ice Cave - Wind Cave System Wyoming Teton 2.900 4667 644 196.3 NSS Conv. 1988 05/88
49 Flathead Alps Cave Montana Powell 0.000 0 642 195.7 Philip Rykwalder e-mail Aug-04
50 Wind Cave     (N.P.) South Dakota Custer 142.750 229734 636 193.9 Rod Horrocks e-mail Sep-14
51 Jewett II Cave Tennessee Cumberland 3.349 5390 636 193.9 Charles Clark 07/86
52 MeanderBelt Cave Montana Flathead 0.723 1164 633 192.9 Michael McEachem e-mail Apr-06
53 Rawhide Horror Hole Tennessee Franklin 1.136 1828 630 192.0 Tenn.Cave Survey 02/03
54 Doe Mountain Cave Virginia Giles 2.712 4365 628 191.4 Bill Balfour e-mail 02/99
55 El Capitan Pit Alaska P.O.W. Island 0.211 340 625 190.5 Georgia Underground V28N4 05/92
56 Butler-Sinking Creek System Virginia Bath 17.610 28341 624 190.2 Tont Canike email Mar-16
57 Double Bopper Cave Arizona Coconino 27.663 44519 618 188.4 Jason Ballenski e-mail May-16
58 Lama Lua System            (Lava Tube) Hawaii Hawaii 3.447 5547 617 188.1 Doug Medville e-mail 04/04
59 Jewett I Cave Tennessee Cumberland 1.788 2878 615 187.5 Charles Clark Jul-86
60 Keala Cave                        (Lava Tube) Hawaii Hawaii 5.410 8707 610 185.9 Stephan Kempe, IUS Com. on Vol.Cave NL 12/99
61 MOS Cave / Obscure Magnificence (2697) Alabama Jackson 1.001 1611 603 183.8 Deep Caves of TAG, J.Stembel 10/01
62 Dulaneys Cave Virginia Giles 4.440 7145 601 183.2 VSS Long & Deep Cave Lists 05/04
63 The Great One Crack                  (Lava Crack) Hawaii Hawaii 0.439 707 600 182.9 NSS NEWS V68N12P9 Dec-10
64 Ape Cave                          (Lava Tube) Washington Skamania 2.500 4023 598 182.3 Garry Petrie e-mail 03/03
65 Friars Hole Cave System West Virginia Green./Pocoho. 46.560 74931 596 181.7 Doug Medville Sep-15
66 Double Date Cave Montana Flathead 1.466 2359 582 177.5 Jason Ballensky e-mail Aug-14
67 Three Fingers Cave New Mexico Eddy 3.700 5955 581 177.1 Rocky Mountain  Caving V8N3P22 SUM91
68 Cody Borehole                     (Lava Tube) Oregon Deschutes 0.798 1284 580 176.8 Garry Petrie 04/94
69 Greenhouse Cave Montana Flathead 0.000 0 578 176.2 Philip Rykwalder e-mail Aug-04
70 Blowing in the Wind Cave Alaska P.O.W. Island 1.144 1841 577 175.9 Alaskan Caver V18N2P24, Carlene Allred 04/98
71 Lewis and Clark Caverns Montana Jefferson 1.906 3067 577 175.9 The Explorer P34 - Bob Richards 03/85
72 Scott Hollow Cave West Virginia Monroe 29.500 47476 571 174.0 WVASS Spring Meeting May-09
73 Sorcerer's Cave Texas Terrell 2.181 3510 570 173.7 Texas Speleological Survey via Jerry Atkinson e-mail Nov-13
74 Tony Sinks - Cox Cave           (78) Alabama Jackson 2.367 3809 570 173.7 Georgia Underground V32N4P37 09/96
75 Youngs Creek Blowhole Tennessee Franklin 1.610 2591 568 173.1 Deep Caves of TAG, John Stembel 10/01
76 Moon Ray Cave Montana Flathead 0.000 0 567 172.8 Philip Rykwalder e-mail Aug-04
77 Scott's Barn Cave / Bloodstone  (907) Alabama Jackson 1.536 2472 563 171.6 Tom Moss 12/95
78 Gary Self Pit                          (290) Alabama Jackson 2.314 3724 560 170.7 ACS 08/87
79 Kelly Ridge Cave Tennessee Blount 0.852 1371 559 170.4 TCS -  Steve Pierce 07/86
80 Bloody Elbow Cave Alabama Madison 1.202 1934 558 170.1 Julie Schenck Brown May-06
81 Memorial Day Cave West Virginia Pendleton 23.550 37900 553 168.6 GVKS - Peter Penczer Aug-13
82 Hurricane Cave        (Granite Boulder/Talus) Colorado Teller 0.733 1180 553 168.6 Cascade Caver V35N6P45 Jun-96
83 Hells Below Cave New Mexico Eddy 1.894 3048 550 167.6 Dave Belski e-mail 03/03
84 Ain't No Cave                              (2312) Alabama Jackson 0.742 1194 549 167.3 Speleo Digest Dec-07
85 Church Cave California Fresno 3.996 6431 547 166.7 David Engel e-mail 09/99
86 Paint Rock River Cave            (2934) Alabama Jackson 1.817 2924 539 164.3 Deep Caves of TAG, John Stembel 10/01
87 Fern Cave                           (597) Alabama Jackson 15.630 25154 536 163.4 Fern Cave Project 1995
88 Luminary Pit Tennessee Bledsoe 1.371 2206 535 163.1 Buddy Lane 07/86
89 Kaupulehu Crater Cave    (part of Manu Nui ?) (Lava Tube) Hawaii Hawaii 0.676 1088 530 161.5 Peter Bosted e-mail Jan-06
90 The Kids Cave                              (2410) Alabama Jackson 1.042 1677 530 161.5 NSS News 06/89
91 Hang 'Em High Cave Tennessee Marion 3.665 5898 528 160.9 NSS News V50N1P6-18 01/92
92 Stolen Well / Davis Cove Cave  (1518) Alabama Jackson 1.291 2078 528 160.9 Georgia Underground V29N3 09/92
93 Kaupulehu System                  (Lava Tube) Hawaii Hawaii 3.077 4952 527 160.6 Doug Medville e-mail 04/03
94 Wind Cave (Wolfpen-Hollow Blowhole) West Virginia Grant 5.170 8320 526 160.3 WVASS Database May-07
95 Thompson Valley Cave System (Corkscrew Cave) Virginia Tazewell 8.250 13277 523 159.4 Mike Ficco e-mail Jun-14
96 Dorthy Taylor Cave Missouri Perry 1.061 1708 521 158.6 Scott House, MSS Feb-13
97 Engle Double Pit                   (266) Alabama Jackson 4.598 7400 520 158.5 Alabama Cave Survey 1975
98 Arabica-Big Fatty Cave System Alaska Heceta Island 1.412 2272 519 158.2 Alaskan Caver V19N2P7 , Steve Lewis Apr-99
99 Bullpasture Mountainside Cave Virginia Highland 0.376 605 519 158.2 Rick Lambert e-mail Oct-05
100 The Great Two Crack                  (Lava Crack) Hawaii Hawaii 0.301 484 518 157.9 NSS NEWS V68N12P15 Dec-10
101 Mossy Abyss Alaska Dall Island 0.143 230 515 157.0 Alaskan Caver  Jun-05
102 Goufffre Tennessee Cumberland 2.131 3430 515 157.0 TCS 01/96
103 McBride's Cave                      (1345) Alabama Jackson 1.753 2821 513 156.4 Georgia Underground V32N4P38 09/96
104 Small Cave                                  (1096) Alabama Jackson 0.957 1540 513 156.4 Georgia Underground V24N1 03/87
105 Elmos Canyon                             (1735) Alabama Jackson 0.930 1497 512 156.1 Georgia Underground V32N4P37 09/96
106 Summers Double Pot                   (1538) Alabama Jackson 0.636 1024 512 156.1 Georgia Underground V32N4P37 09/96
107 Wilkson Hollow Horror Hole Tennessee Franklin 2.259 3636 512 156.1 TCS 01/96
108 Rendezous Peak Cave Wyoming Teton 0.258 415 512 156.1 Caves of Wyoming 03/76
109 Newton Cave Washington King 0.189 304 510 155.4 David Mischke e-mail May-11
110 Potential Pit / Langston Cave        (1558) Alabama Jackson 0.758 1220 510 155.4 Georgia Underground V29N3P18-19 09/92
111 Lilburn Cave  (N.P.) California Tulare 21.516 34627 508 154.8 Jed Mosenfelder e-mail Jan-11
112 Sipapu Caverns Arizona Coconino 0.000 0 504 153.6 NSS Long and Deep Cave List 1982
113 Mad As A Wet Hen Pit                 (2147) Alabama Jackson 0.860 1384 502 153.0 Deep Caves of TAG, John Stembel 10/01
114 Siberian Sword Cave Alaska Heceta Island 0.200 322 501 152.7 Marcel LaPerriere e-mail 08/98
115 Microwave-A-Hole System      (1927) Alabama Jackson 2.652 4268 500 152.4 ACS 03/85
116 Cave of the Madonna New Mexico Eddy 1.894 3048 500 152.4 Dave Belski e-mail 03/03
117 Hickey Pot Tennessee Warren 1.542 2482 500 152.4 Tenn.Cave Survey 02/03
118 Stoned Well                               (1578) Alabama Jackson 0.511 822 498 151.8 Alabama Cave Survey 03/85
119 Fowler Pit 2 / Bleeding Ghyll Cave (655) Alabama Jackson 0.918 1477 497 151.5 Alabama Cave Survey 03/85
120 Greenhorn System               (Boulder Cave) California Kern 0.594 956 497 151.5 NSS News V44N4P88 Apr-86
121 Paiute (Black Abyss) Cave Arizona Coconino 0.000 0 497 151.5 Louise Hose (on Indian Land) 10/89
122 Ram's Horn Cave Montana Meagher 0.900 1448 496 151.2 NSS Conv. 1987
123 Phantom Springs Cave Texas Jeff Davis 1.948 3136 493 150.3 Texas Speleological Survey via Jerry Atkinson e-mail Nov-13
124 Illiad / Odyessy Cave System    (1568) Alabama Jackson 1.663 2676 493 150.3 ACS 03/95
125 Moonprobe Cave Alaska Dall Island 0.133 214 493 150.3 NSS News V53N2P34 02/95
126 Gap Cave System (Cudjo's)   (C.G.N.H.P.) Virginia Lee 18.529 29820 491 149.7 Bob Gulden (CRF) Apr-16
127 Turkey Roost Cave West Virginia Pocahontas 2.841 4572 490 149.4 WVASS Database May-07
128 Bear-Hanna Cave                     (2100) Alabama Jackson 1.161 1868 488 148.7 Georgia Underground V32N4P38 06/96
129 Organ Cave System West Virginia Greenbrier 38.452 61882 486 148.1 WVASS Database May-07
130 P-Bar (PeBar) Cave Wyoming Big Horn 1.851 2979 486 148.1 Tomes 1977
131 Vanishing River Cave New Mexico   0.260 418 485 147.8 Dave Belski e-mail 03/03
132 Rumbling Falls Cave. Tennessee Van Buren 16.091 25896 474 144.5 Marion O.Smith per TCS 02/03
133 Bad Medicine Cave Wyoming Big Horn 1.910 3074 472 143.9 Marc Ohms e-mail 09/99
134 Spasm Chasm Tennessee Marion 1.441 2319 472 143.9 Tenn.Cave Survey 02/03
135 Keystone River Cave Tennessee Van Buren 3.629 5840 471 143.6 Tenn.Cave Survey 02/03
136 Tanglefoot Cave Maryland Allegany 1.120 1802 470 143.3 Donnie Cams e-mail Oct-15
137 Twenty Pound Tick Cave Colorado Garfield 1.080 1738 469 143.0 Rocky Mtn. Caving SUM93
138 Guy's Cave                                 (1078) Alabama Jackson 0.820 1320 468 142.6 ACS 1985
139 Under the Wall Cave               (Lava Tube) Hawaii Hawaii 2.736 4403 464 141.4 Doug Medville e-mail 10/99
140 Baby Hog Horror Hole Tennessee Franklin 0.663 1067 460 140.2 TDCL 09/92
141 Deep Cave New Mexico Eddy 0.601 967 460 140.2 Dave Belski e-mail 03/03
142 ? Cave Tennessee Carter ? 0.000 0 460 140.2 Clinton Elmore  on Facebook Oct-15
143 Cairn Blowhole (Pit)                  (2290) Alabama Jackson 1.515 2438 460 140.2 Georgia Underground V32N4P38 09/96
144 Thunder Hole                              (1435) Alabama Jackson 0.323 520 460 140.2 Georgia Underground V32N4P38 09/96
145 Polygamys End Cave Utah Cache 0.138 222 459 139.9 www.caves.org/grotto/timpgrotto/ 01/03
146 Buckeye Cave                              (779) Alabama Jackson 1.034 1664 457 139.3 Georgia Underground V24N1 03/87
147 Sinking Cove Cave System Tennessee Franklin 5.350 8610 457 139.3 Rick Buice 09/89
148 Tumbling Rock Cave             (171)     (Saltpeter) Alabama Jackson 6.022 9691 454 138.4 Georgia Underground V32N4P38] 09/96
149 Blunder Hole                               (3333) Alabama Jackson 0.720 1159 453 138.1 Georgia Underground V31N4P3 11/95
150 Wash Pot                                   (1353) Alabama Jackson 0.321 517 453 138.1 Georgia Underground V29N3P18-19 09/92
151 Sinuos System Cave Alaska Heceta Island 0.000 0 453 138.1 Marcel LaPerriere e-mail 09/98
152 Hairy Pit / Flowing Spring Cave  (847) Alabama Jackson 1.515 2438 450 137.2 Georgia Underground V32N4P38 09/96
153 Doodlebug Hole / Blowing Cave (195) Alabama Jackson 1.394 2243 450 137.2 ACS May-12
154 Gilley Cave Virginia Lee 4.545 7314 450 137.2 VSS 1978
155 Laurel Caverns Pennsylvania Fayette 3.090 4973 447 136.2 Walt Hamm e-mail Sep-00
156 Bird Horror Hole                         (2508) Alabama Jackson 0.443 713 447 136.2 Georgia Underground V29N3P18-19 09/92
157 Walking Fern Pit                         (1598) Alabama Jackson 0.376 605 447 136.2 Georgia Underground V32N4P38 09/96
158 Hummel's Cave California Fresno 0.185 298 447 136.2 Bob Richards 01/90
159 Triple Engle Pit                     (Gypsum) New Mexico De Baca 1.544 2485 442 134.7 Dave Belski e-mail 03/03
160 Fort Stanton Cave New Mexico Lincoln 31.350 50453 441 134.4 Lee H.Skinner e-mail Jul-14
161 Real Well Tennessee Marion 0.758 1220 441 134.4 1998 NSS Convention 08/98
162 Schoolhouse West Virginia Pendleton 1.620 2607 439 133.8 Gordon Brace e-mail Oct-05
163 Whiteoak Blowhole Tennessee Blount 1.153 1856 439 133.8 Georgia Underground V32N4P38 09/96
164 Bennett Cove Cave                    (2174) Alabama Jackson 0.613 987 435 132.6 ACS Jun-05
165 Mill Creek Crystal Cave Montana Park 1.350 2173 435 132.6 James Cummins e-mail Aug-12
166 Shinaberry Cave West Virginia Pocahontas 1.001 1611 435 132.6 WVASS 1987
167 French Creek Cave Montana Beaverhead 1.831 2947 434 132.3 Caves of Montana 03/78
168 Jim Cave                                    (273) Alabama Jackson 0.585 941 432 131.7 Georgia Underground V32N4P38 09/96
169 Twenty Three Dollar Pit               (996) Alabama Jackson 0.380 612 432 131.7 Georgia Underground V29N3P18-19 09/92
170 Mill Hole                                   (745) Alabama Jackson 1.114 1793 431 131.4 Georgia Underground V29N3P18-19 09/92
171 Bucks Pocket Cave                      (432) Alabama Jackson 1.136 1828 430 131.1 ACS Jun-05
172 El Capitan Cave Alaska P.O.W. Island 2.367 3809 428 130.8 NSS Caves Files - Dick Blenz Oct-05
173 Crystal Palace Cave Alaska P.O.W. Island 0.000 0 429 130.8 NSS News  
174 Solution Rift Tennessee Marion 1.013 1630 429 130.8 TDCL 09/92
175 Pig Hole Virginia Giles 1.180 1899 428 130.5 VSS 02/89
176 Warner Noisy Blower West Virginia Pendleton 0.620 998 428 130.5 GVKS   Dec-15
177 Scott Cave West Virginia Monroe 1.000 1609 426 129.8 Mike Dore 10/85
178 Better Forgotten Cave Virginia Highland 0.947 1524 426 129.8 BCCS 07/95
179 Cyclops Cave Virginia Russell 7.080 11394 424 129.2 J.Christie e-mail Jun-14
180 Dark Well                                   (1945) Alabama Jackson 0.439 707 421 128.3 Georgia Underground V29N3P18-19 09/92
181 Sewanee Plunge Tennessee Franklin 0.947 1524 420 128.0 Georgia Underground V32N4P38 09/96
182 Reaper's Rockpile   (gravity-slide cave) Montana Teton 0.142 229 419 127.7 Jason e-mail Oct-05
183 Paradox Cave Tennessee VanBuren 1.705 2744 418 127.4 Georgia Underground V32N4P38 09/96
184 Vast Caverns                              (1860) Alabama Jackson 0.305 491 417 127.1 Georgia Underground V29N3P18-19 09/92
185 Crystal 67 Cave California Tulare 0.387 623 415 126.5 California Caver V33N1 Mar-82
186 Sherwood Spring Cave Tennessee Franklin 0.619 996 414 126.2 Deep Caves of TAG, John Stembel 10/01
187 Falls (Panther) Creek (Lava) Cave  (Lava Tube) Washington Skamania 1.738 2797 413 125.9 R.L.Crawford-Worlds Longest Lava Tubes 1982
188 Spence Cave Virginia Smyth 0.000 0 413 125.9 VSS 1995
189 The Cave That Summer Forgot Montana Flathead 0.334 538 412 125.6 Jason Ballensky e-mail Aug-14
190 Trice Hollow Pit                           (2012) Alabama Jackson 0.762 1226 411 125.3 Georgia Underground V29N3P18-19 09/92
191 Will's Welch Well                        (1748) Alabama Jackson 0.253 407 410 125.0 Deep Caves of TAG, John Stembel 10/01
192 LilyGuard Cave Montana Judith Basin 0.410 660 410 125.0 Rick Brinkman e-mail 05/03
193 Twist of Fate Pit Alabama Jackson 0.089 143 408 124.4 NSS News V72N1 Jan-14
194 Weeki Wachee Spring   Florida Hernando 1.894 3048 407 124.1 Caves and Karst of Florida, 2008 NSS Convention Jul-13
195 Mammoth Cave System   (N.P.) Kentucky Ed./Hart/Bar. 405.000 651784 407 124.1 CRF / CKKC  +/-5 MILES Oct-15
196 Wooden Ladder Cave     (Lava Tube) Hawaii Hawaii 0.758 1220 406 123.7 Doug Medville Nov-06
197 Little Red River Cave             (Lava Tube) Washington Skamania 0.641 1032 406 123.7 Cascade Caver V35N6P45 06/96
198 Montague Cave                     (379) Alabama Jackson 4.220 6791 406 123.7 Deep Caves of TAG, John Stembel 10/01
199 Sub-Solomon Cave Tennessee Franklin 0.711 1144 405 123.4 TCS 02/03
200 Water Well                                 (1747) Alabama Jackson 0.554 892 402 122.5 Georgia Underground V29N3P18-19 09/92
201 Wet Cave / Above (Well) Wet Cave Tennessee Franklin 1.414 2276 401 122.2 Speleonews V34N3 06/90
202 Fort-Pebbles Cave Tennessee Franklin 1.234 1986 401 122.2 Tenn.Cave Survey 02/03
203 Oregon Caves Oregon Josephine 3.030 4876 400 121.9 Steve Knutson 01/85
204 Gourdneck Cave Tennessee Marion 1.515 2438 400 121.9 TCS 09/86
205 Main Well Tennessee Marion 1.326 2134 400 121.9 Deep Caves of TAG, John Stembel 10/01
206 Happy Top Horror Hole Tennessee Cumberland 0.855 1376 400 121.9 Clinton Elmore on Facebook Feb-14
207 Russell Cave   (N.M.)        (169) Alabama Jackson 7.576 12192 400 121.9 Deep Caves of TAG, John Stembel 10/01
208 Icy Fate Cave Alaska Heceta Island 0.623 1003 400 121.9 Marcel LaPerriere e-mail 08/98
209 Mega Well                                (2310) Alabama Jackson 0.506 814 400 121.9 ACS Jun-05