USA DEEPEST CAVES   Compiled by: Bob Gulden - Dec. 04, 2020
Caves Mapped/Surveyed with 350+ 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 2020 NSS Geo2, Bob Gulden NSS#13188LF
Do not ask for cave locations, I will not give them out.
 
        LENGTH 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 06/16
2 Delissea Cave System     (Lava Tube) Hawaii Hawaii 29.210 47009 3610 1100.3 Peter Bosted e-mail 02/20
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 1.488 2395 1863 567.8 Jason Ballensky & Peter Johnson e-mail 08/19
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 150.400 242045 1589 484.2 Hazel Barton e-mail 01/20
7 Virgil The Turtle's Great House Cave Montana Flathead 1.022 1645 1586 483.4 Bodenhamer, Ballensky, Rykwalder, Sainsbury via e-mail 07/16
8 Columbine Crawl Wyoming Teton 2.301 3703 1551 472.7 Warren Anderson e-mail 01/16
9 Hualalai Ranch Cave    (Lava Tube)             Hawaii Hawaii 17.265 27785 1449 441.7 Doug Medville e-mail 03/16
10 Emesine Cave (1881 System)    (Lava Tube)      Hawaii Hawaii 12.890 20744 1433 436.8 Don Coons e-mail 03/16
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 2.530 4072 1306 398.1 Tony Grove Cave Project 08/16
13 Omega System Virginia Wise 29.430 47363 1263 385.0 Mike Ficco e-mail 06/16
14 Bigfoot Cave California Siskiyou 16.250 26152 1205 367.3 Scott Linn e-mail 10/16
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??)     Hawaii Hawaii 9.942 16000 1150 350.5 Lava Tube Flow e-mails 05/16
17 Manu Nui Lava Tube           Hawaii Hawaii 2.150 3460 1143 348.4 NSS NEWS V65N10P21 09/16
18 Ellisons Cave Georgia Walker 12.127 19517 1063 324.0 Georgia Underground V24N1 03/87
19 Ainahou Ranch Cave     (Lava Tube) Hawaii Hawaii 4.418 7110 1060 323.0 Stephan Kempe e-mail                           04/19
20 Silvertip Cave System Montana Flathead 5.815 9358 1052 320.6 Alpine Karst Sum77
21 Carlsbad Cavern   (C.C.N.P.) New Mexico Eddy 39.500 63569 1035 315.5 Vidio on liine 12/19
22 Tickle Me Turtle Cave (Portal 3) Montana Flathead 0.761 1225 1027 313.0 Jason Ballensky e-mail 08/16
23 Kahawahapapa Cave      (Lava Tube) Hawaii Maui 0.586 943 1024 312.0 Bob Richards e-mail 08/20
24 Kipuka Kanohina Cave (Kula Kai Caverns)       (Lava Tube) Hawaii Hawaii 26.027 41887 945 288.0 Kanohina Data Manager - Tomislav Gracanin e-mail 06/19
25 Bull Cave Tennessee Blount 2.272 3656 924 281.6 Mark Lassiter 08/98
26 Nielsons Well / Cave Utah Cache 1.420 2285 880 268.2 www.caves.org/grotto/timpgrotto/ 01/16
27 Kauhako Crater  (Vauhako)         (Lava Pit) Hawaii Molokai 0.000 0 865 263.7 Earl Neller via Halliday(Water filled) 07/97
28 Na One Pit(Pit 6083,Pelee's Abyss) (Lava Pit) Hawaii Hawaii 0.000 0 862 262.7 Dave Bunnell 04/94
29 Little Brush Creek Cave Utah Uintah 5.930 9543 858 202.0 Rod Horrocks e-mail 03/19
30 Big Brush Creek Cave Utah Uintah 4.920 7918 858 261.5 www.caves.org/grotto/timpgrotto/ 01/16
31 Rich Mountain Blowhole Tennessee Blount 2.185 3516 840 256.0 Tenn.Cave Survey 02/15
32 Papoose Cave Idaho Idaho 3.250 5230 833 253.9 Daryl Greaser e-mail 01/19
33 Jewel Cave    (N.M.) South Dakota Custer 208.510 335564 815 248.4 Adam Weaver e-mail 02/20
34 Chestnut Ridge Cave System Virginia Bath 22.063 35507 814 248.0 BCCS 10/19
35 Sunray - Sunset Cave System Montana Flathead 0.832 1339 801 244.1 NSS Long and Deep Cave List 06/17
36 Viva Silva Cave Alaska Heceta Island 0.000 0 797 242.9 Marcel LaPerriere e-mail 08/98
37 Big Red Cave          (Lava Tube)              Hawaii Hawaii 2.241 3607 760 231.6 Doug Medville e-mail 09/16
38 Spanish Cave Colorado Custer 1.090 1754 741 225.9 Richard Rhinehart e-mail 05/16
39 Ka'eleku Caverns        (Lava Tube)            Hawaii Maui 1.772 2852 738 224.9 Bob Richards e-mail 12/99
40 Hellhole System West Virginia Pendleton 43.600 70167 737 224.6 GVKS 02/20
41 Snow Dragon Cave (Glacier cave, melting away) Oregon Clackamas 0.464 747 736 224.3 Matt Skeels, Oregon High Desert Grotto e-mail 04/20
42 Virgin Cave New Mexico Eddy 3.650 5874 723 220.4 Paul Burger e-mail 02/19
43 Sugar Run Cave System Virginia Giles 22.550 36291 718 218.8 VSS 02/15
44 Pure Imagination Cave (Glacier cave, melting away) Oregon Clackamas 0.548 881 708 216.0 Matt Skeels, Oregon High Desert Grotto e-mail 04/20
45 Simmons Mingo - My Cave System West Virginia Rand./Pocahon. 6.700 10783 683 208.2 Bob Thrun 06/82
46 Overholts Blowing Cave West Virginia Pocahontas 7.811 12571 666 203.0 Gary Storrick 01/16
47 Dorton Knob Smoke Hole Tennessee Cumberland 1.023 1646 660 201.2 TCS -  Chris Kerr 01/96
48 SnowHole Alaska P.O.W. Island 0.516 830 652 198.7 NSS NEWS V69N1P26 01/16
49 Lost Creek Siphon Montana Park 0.189 304 650 198.1 Jay Kennedy e-mail 02/15
50 Butler-Sinking Creek System Virginia Bath 18.060 29065 644 196.4 Tont Canike email 09/16
51 Fossil Mtn.Ice Cave - Wind Cave System Wyoming Teton 2.900 4667 644 196.3 NSS Conv. 1988 05/88
52 Flathead Alps Cave Montana Powell 0.000 0 642 195.7 Philip Rykwalder e-mail 08/16
53 Wind Cave     (N.P.) South Dakota Custer 154.200 248161 636 193.9 FACEBOOK 02/20
54 Jewett II Cave Tennessee Cumberland 3.349 5390 636 193.9 Charles Clark 07/86
55 MeanderBelt Cave Montana Flathead 0.723 1164 633 192.9 Michael McEachem e-mail 04/17
56 Lower Delissea    (Lava Tube) Hawaii Hawaii 2.208 3553 633 192.9 Peter Bosted e-mail 09/16
57 Rawhide Horror Hole Tennessee Franklin 1.136 1828 630 192.0 Tenn.Cave Survey 02/15
58 Doe Mountain Cave Virginia Giles 2.712 4365 628 191.4 Bill Balfour e-mail 02/99
59 El Capitan Pit Alaska P.O.W. Island 0.211 340 625 190.5 Georgia Underground V28N4 05/92
60 Double Bopper Cave Arizona Coconino 40.600 65339 618 188.4 Shane McCurdy e-mail 03/19
61 Lama Lua System             (Lava Tube) Hawaii Hawaii 3.447 5547 617 188.1 Doug Medville e-mail 04/17
62 Jewett I Cave Tennessee Cumberland 1.788 2878 615 187.5 Charles Clark 07/86
63 Friars Hole Cave System West Virginia Green./Pocoho. 47.010 75655 613 186.8 Doug Medville 01/20
64 Keala Cave             (Lava Tube)             Hawaii Hawaii 5.410 8707 610 185.9 Stephan Kempe, IUS Com. on Vol.Cave NL 12/99
65 Thompson Valley Cave System (Corkscrew Cave) Virginia Tazewell 8.600 13841 604 184.0 VSS 11/19
66 MOS Cave / Obscure Magnificence (2697) Alabama Jackson 1.001 1611 603 183.8 Deep Caves of TAG, J.Stembel 10/16
67 Dulaneys Cave Virginia Giles 4.435 7138 601 183.2 VSS  05/16
68 The Great One Crack                  (Lava Crack) Hawaii Hawaii 0.439 707 600 182.9 NSS NEWS V68N12P9 102/2015
69 Ape Cave                           Washington Skamania 2.500 4023 598 182.3 Garry Petrie e-mail 03/16
70 Great Savannah Cave System West Virginia Greenbrier 44.256 71223 588 179.2 Nick Socky FB 11/20
71 Double Date Cave Montana Flathead 1.540 2478 582 177.4 Jason Ballensky e-mail 12/16
72 Three Fingers Cave New Mexico Eddy 3.700 5955 581 177.1 Rocky Mountain  Caving V8N3P22 SUM91
73 Cody Borehole                      Oregon Deschutes 0.798 1284 580 176.8 Garry Petrie 04/94
74 Memorial Day Cave West Virginia Pendleton 29.030 46719 579 176.5 GVKS 12/20
75 Greenhouse Cave Montana Flathead 0.000 0 578 176.2 Philip Rykwalder e-mail 08/16
76 Lewis and Clark Caverns Montana Jefferson 1.906 3067 577 175.9 The Explorer P34 - Bob Richards 03/85
77 Blowing in the Wind Cave Alaska P.O.W. Island 1.144 1841 577 175.9 Alaskan Caver V18N2P24, Carlene Allred 04/98
78 Scott Hollow Cave West Virginia Monroe 29.500 47476 571 174.0 WVASS Spring Meeting 05/16
79 Tony Sinks - Cox Cave           (78) Alabama Jackson 2.367 3809 570 173.7 Georgia Underground V32N4P37 09/96
80 Sorcerer's Cave Texas Terrell 2.181 3510 570 173.7 Texas Speleological Survey via Jerry Atkinson e-mail 01/16
81 Youngs Creek Blowhole Tennessee Franklin 1.610 2591 568 173.1 Deep Caves of TAG, John Stembel 10/16
82 Moon Ray Cave Montana Flathead 0.000 0 567 172.8 Philip Rykwalder e-mail 08/16
83 Scott's Barn Cave / Bloodstone  (907) Alabama Jackson 1.536 2472 563 171.6 Tom Moss 12/95
84 Gary Self Pit                          (290) Alabama Jackson 2.314 3724 560 170.7 ACS 08/87
85 Kelly Ridge Cave Tennessee Blount 0.852 1371 559 170.4 TCS -  Steve Pierce 07/86
86 Bloody Elbow Cave Alabama Madison 1.202 1934 558 170.1 Julie Schenck Brown 05/16
87 Hurricane Cave        (Granite Boulder/Talus) Colorado Teller 0.733 1180 553 168.6 Cascade Caver V35N6P45 06/96
88 Hells Below Cave New Mexico Eddy 1.894 3048 550 167.6 Dave Belski e-mail 03/16
89 Ain't No Cave                              (2312) Alabama Jackson 0.742 1194 549 167.3 Speleo Digest 02/15
90 Church Cave California Fresno 3.996 6431 547 166.7 David Engel e-mail 09/99
91 Paint Rock River Cave            (2934) Alabama Jackson 1.817 2924 539 164.3 Deep Caves of TAG, John Stembel 10/16
92 Fern Cave                           (597) Alabama Jackson 15.630 25154 536 163.4 Fern Cave Project 06/17
93 Luminary Pit Tennessee Bledsoe 1.371 2206 535 163.1 Buddy Lane 07/86
94 The Kids Cave                              (2410) Alabama Jackson 1.042 1677 530 161.5 NSS News 06/89
95 Kaupulehu Crater Cave    (part of Manu Nui ?)    (Lava Tube) Hawaii Hawaii 0.676 1088 530 161.5 Peter Bosted e-mail 01/16
96 Hang 'Em High Cave Tennessee Marion 3.665 5898 528 160.9 NSS News V50N1P6-18 01/92
97 Stolen Well / Davis Cove Cave  (1518) Alabama Jackson 1.291 2078 528 160.9 Georgia Underground V29N3 09/92
98 Kaupulehu System           (Lava Tube)         Hawaii Hawaii 3.077 4952 527 160.6 Doug Medville e-mail 04/17
99 Wind Cave (Wolfpen-Hollow Blowhole) West Virginia Grant 5.170 8320 526 160.3 WVASS Database 05/16
100 Grunge Plunge Tennessee Washington 1.136 1828 526 160.3 Clinton Elmore  on Facebook 07/16
101 Dorthy Taylor Cave Missouri Perry 1.061 1708 521 158.8 Scott House, MSS 02/15
102 Engle Double Pit                   (266) Alabama Jackson 4.598 7400 520 158.5 Alabama Cave Survey 05/17
103 Arabica-Big Fatty Cave System Alaska Heceta Island 1.412 2272 519 158.2 Alaskan Caver V19N2P7 , Steve Lewis 04/99
104 Bullpasture Mountainside Cave Virginia Highland 0.376 605 519 158.2 Rick Lambert e-mail 10/16
105 The Great Two Crack                  (Lava Crack) Hawaii Hawaii 0.301 484 518 157.9 NSS NEWS V68N12P15 102/2015
106 Jewett III Tennessee Cumberland 2.520 4055 515 157.0 Hinch Mountain Project 09/19
107 (Breached) Many Wall Cave      (Lava Tube) Hawaii Hawaii 1.930 3106 515 157.0 Doug Medville e-mail 03/16
108 Goufffre Tennessee Cumberland 2.131 3430 515 157.0 TCS 01/96
109 Mossy Abyss Alaska Dall Island 0.143 230 515 157.0 Alaskan Caver  06/16
110 McBride's Cave                      (1345) Alabama Jackson 1.753 2821 513 156.4 Georgia Underground V32N4P38 09/96
111 Small Cave                                  (1096) Alabama Jackson 0.957 1540 513 156.4 Georgia Underground V24N1 03/87
112 Wilkson Hollow Horror Hole Tennessee Franklin 2.259 3636 512 156.1 TCS 01/96
113 Elmos Canyon                             (1735) Alabama Jackson 0.930 1497 512 156.1 Georgia Underground V32N4P37 09/96
114 Summers Double Pot                   (1538) Alabama Jackson 0.636 1024 512 156.1 Georgia Underground V32N4P37 09/96
115 Rendezous Peak Cave Wyoming Teton 0.258 415 512 156.1 Caves of Wyoming 03/76
116 Potential Pit / Langston Cave        (1558) Alabama Jackson 0.758 1220 510 155.4 Georgia Underground V29N3P18-19 09/92
117 Newton Cave Washington King 0.189 304 510 155.4 David Mischke e-mail 05/16
118 Lilburn Cave  (N.P.) California Tulare 22.170 35679 508 154.8 Jed Mosenfelder e-mail 01/19
119 Sipapu Caverns Arizona Coconino 0.000 0 504 153.6 NSS Long and Deep Cave List 06/17
120 Mad As A Wet Hen Pit                 (2147) Alabama Jackson 0.860 1384 502 153.0 Deep Caves of TAG, John Stembel 10/16
121 Siberian Sword Cave Alaska Heceta Island 0.200 322 501 152.7 Marcel LaPerriere e-mail 08/98
122 Microwave-A-Hole System      (1927) Alabama Jackson 2.652 4268 500 152.4 ACS 03/85
123 Cave of the Madonna New Mexico Eddy 1.894 3048 500 152.4 Dave Belski e-mail 03/16
124 Hickey Pot Tennessee Warren 1.542 2482 500 152.4 Tenn.Cave Survey 02/15
125 Stoned Well                               (1578) Alabama Jackson 0.511 822 498 151.8 Alabama Cave Survey 03/85
126 Fowler Pit 2 / Bleeding Ghyll Cave (655) Alabama Jackson 0.918 1477 497 151.5 Alabama Cave Survey 03/85
127 Greenhorn System               (Boulder Cave) California Kern 0.594 956 497 151.5 NSS News V44N4P88 04/86
128 Ram's Horn Cave Montana Meagher 0.900 1448 496 151.2 NSS Conv. 06/17
129 Phantom Springs Cave Texas Jeff Davis 1.948 3135 493 150.3 Texas Speleological Survey via Jerry Atkinson e-mail 01/16
130 Illiad / Odyessy Cave System    (1568) Alabama Jackson 1.663 2676 493 150.3 ACS 03/95
131 Moonprobe Cave Alaska Dall Island 0.133 214 493 150.3 NSS News V53N2P34 02/95
132 Gap Cave System (Cudjo's)   (C.G.N.H.P.) Virginia Lee 19.884 32000 491 149.7 Bob Gulden (CRF) 04/19
133 Turkey Roost Cave West Virginia Pocahontas 2.841 4572 490 149.4 WVASS Database 05/16
134 Bear-Hanna Cave                     (2100) Alabama Jackson 1.161 1868 488 148.7 Georgia Underground V32N4P38 06/96
135 Organ Cave System West Virginia Greenbrier 38.452 61882 486 148.1 WVASS Database 05/16
136 P-Bar (PeBar) Cave Wyoming Big Horn 1.851 2979 486 148.1 Tomes 05/17
137 Vanishing River Cave New Mexico - 0.260 418 485 147.8 Dave Belski e-mail 03/16
138 Rumbling Falls Cave. Tennessee Van Buren 16.091 25896 474 144.5 Marion O.Smith per TCS 02/15
139 Bad Medicine Cave Wyoming Big Horn 1.910 3074 472 143.9 Marc Ohms e-mail 09/99
140 Spasm Chasm Tennessee Marion 1.441 2319 472 143.9 Tenn.Cave Survey 02/15
141 Keystone River Cave Tennessee Van Buren 3.629 5840 471 143.6 Tenn.Cave Survey 02/15
142 Tanglefoot Cave Maryland Allegany 1.326 2134 470 143.3 Donnie Cams e-mail 10/18
143 Twenty Pound Tick Cave Colorado Garfield 1.080 1738 469 143.0 Rocky Mtn. Caving SUM93
144 Guy's Cave                                 (1078) Alabama Jackson 0.820 1320 468 142.6 ACS 06/17
145 Under the Wall Cave                Hawaii Hawaii 2.736 4403 464 141.4 Doug Medville e-mail 10/99
146 Seabolt-Spence Cave System Virginia Smyth 0.587 945 463 141.0 VSS 11/19
147 Cairn Blowhole (Pit)                  (2290) Alabama Jackson 1.515 2438 460 140.2 Georgia Underground V32N4P38 09/96
148 Baby Hog Horror Hole Tennessee Franklin 0.663 1067 460 140.2 TDCL 09/92
149 Deep Cave New Mexico Eddy 0.601 967 460 140.2 Dave Belski e-mail 03/16
150 Thunder Hole                              (1435) Alabama Jackson 0.323 520 460 140.2 Georgia Underground V32N4P38 09/96
151 Middle Hapuu      (Lava Tube) Hawaii Hawaii 1.304 2099 460 140.2 Peter Bosted e-mail 09/16
152 Polygamys End Cave Utah Cache 0.138 222 459 139.9 www.caves.org/grotto/timpgrotto/ 01/16
153 Sinking Cove Cave System Tennessee Franklin 5.350 8610 457 139.3 Rick Buice 09/89
154 Buckeye Cave                              (779) Alabama Jackson 1.034 1664 457 139.3 Georgia Underground V24N1 03/87
155 Tumbling Rock Cave             (171)     (Saltpeter) Alabama Jackson 6.022 9691 454 138.4 Georgia Underground V32N4P38] 09/96
156 Blunder Hole                               (3333) Alabama Jackson 0.720 1159 453 138.1 Georgia Underground V31N4P3 11/95
157 Wash Pot                                   (1353) Alabama Jackson 0.321 517 453 138.1 Georgia Underground V29N3P18-19 09/92
158 Sinuos System Cave Alaska Heceta Island 0.000 0 453 138.1 Marcel LaPerriere e-mail 09/98
159 Gilley Cave Virginia Lee 4.545 7314 450 137.2 VSS 05/17
160 Hairy Pit / Flowing Spring Cave  (847) Alabama Jackson 1.515 2438 450 137.2 Georgia Underground V32N4P38 09/96
161 Doodlebug Hole / Blowing Cave (195) Alabama Jackson 1.394 2243 450 137.2 ACS 05/16
162 New Cave Maryland Allegany 0.757 1219 449 137.0 Donnie Cams e-mail 10/18
163 Bird Horror Hole                         (2508) Alabama Jackson 0.443 713 447 136.2 Georgia Underground V29N3P18-19 09/92
164 Walking Fern Pit                         (1598) Alabama Jackson 0.376 605 447 136.2 Georgia Underground V32N4P38 09/96
165 Hummel's Cave California Fresno 0.185 298 447 136.2 Bob Richards 01/90
166 Redemption Cave     (Lava Tube)       Hawaii Hawaii 1.708 2749 446 136.0 Doug Medville e-mail 3/18
167 Triple Engle Pit                     . New Mexico De Baca 1.544 2485 442 134.7 Dave Belski e-mail 03/16
168 Fort Stanton Cave New Mexico Lincoln 42.270 68027 441 134.4 Lee H.Skinner e-mail 10/20
169 Real Well Tennessee Marion 0.758 1220 441 134.4 1998 NSS Convention 08/98
170 Schoolhouse West Virginia Pendleton 1.620 2607 439 133.8 Gordon Brace e-mail 10/16
171 Whiteoak Blowhole Tennessee Blount 1.153 1856 439 133.8 Georgia Underground V32N4P38 09/96
172 Mill Creek Crystal Cave Montana Park 1.350 2173 435 132.6 James Cummins e-mail 08/16
173 Shinaberry Cave West Virginia Pocahontas 1.001 1611 435 132.6 WVASS  06/17
174 Bennett Cove Cave                    (2174) Alabama Jackson 0.613 987 435 132.6 ACS 06/16
175 French Creek Cave Montana Beaverhead 1.831 2947 434 132.3 Caves of Montana 03/78
176 Jim Cave                                    (273) Alabama Jackson 0.585 941 432 131.7 Georgia Underground V32N4P38 09/96
177 Twenty Three Dollar Pit               (996) Alabama Jackson 0.380 612 432 131.7 Georgia Underground V29N3P18-19 09/92
178 Mill Hole                                   (745) Alabama Jackson 1.114 1793 431 131.4 Georgia Underground V29N3P18-19 09/92
179 Battered Bar Cave Virginia Bath 1.610 2591 431 131.3 Nathan Farrar e-mail 07/17
180 Bucks Pocket Cave                      (432) Alabama Jackson 1.136 1828 430 131.1 ACS 06/16
181 Kimble Pit West Virginia Pendleton 8.640 13905 429 130.8 GVKS 01/20
182 Solution Rift Tennessee Marion 1.013 1630 429 130.8 TDCL 09/92
183 Crystal Palace Cave Alaska P.O.W. Island 0.000 0 429 130.8 NSS News -
184 El Capitan Cave Alaska P.O.W. Island 2.367 3809 428 130.5 NSS Caves Files - Dick Blenz 10/16
185 Pig Hole Virginia Giles 1.180 1899 428 130.5 VSS 02/89
186 Scott Cave West Virginia Monroe 1.000 1609 426 129.8 Mike Dore 10/85
187 Better Forgotten Cave Virginia Highland 0.947 1524 426 129.8 BCCS 07/95
188 Cyclops Cave Virginia Russell 7.080 11394 424 129.2 J.Christie e-mail 06/16
189 Dark Well                                   (1945) Alabama Jackson 0.439 707 421 128.3 Georgia Underground V29N3P18-19 09/92
190 Sewanee Plunge Tennessee Franklin 0.947 1524 420 128.0 Georgia Underground V32N4P38 09/96
191 Reaper's Rockpile   (gravity-slide cave) Montana Teton 0.142 229 419 127.7 Jason e-mail 10/16
192 Paradox Cave Tennessee VanBuren 1.705 2744 418 127.4 Georgia Underground V32N4P38 09/96
193 Warner Noisy Blower West Virginia Pendleton 0.781 1257 418 127.3 Dwight Livingston e-mail 12/19
194 Vast Caverns                              (1860) Alabama Jackson 0.305 491 417 127.1 Georgia Underground V29N3P18-19 09/92
195 Deadhorse Cave                     Washington Skamania 2.735 4402 417 127.0 Garry Petrie e-mail 03/16
196 Crystal 67 Cave California Tulare 0.387 623 415 126.5 California Caver V33N1 03/82
197 Sherwood Spring Cave Tennessee Franklin 0.619 996 414 126.2 Deep Caves of TAG, John Stembel 10/16
198 Grim Rock Cave Virginia Giles 0.422 679 413 125.9 VSS 06/17
199 The Cave That Summer Forgot Montana Flathead 0.334 538 412 125.6 Jason Ballensky e-mail 08/16
200 Trice Hollow Pit                           (2012) Alabama Jackson 0.762 1226 411 125.3 Georgia Underground V29N3P18-19 09/92
201 LilyGuard Cave Montana Judith Basin 0.410 660 410 125.0 Rick Brinkman e-mail 05/16
202 Will's Welch Well                        (1748) Alabama Jackson 0.253 407 410 125.0 Deep Caves of TAG, John Stembel 10/16
203 Twist of Fate Pit Alabama Jackson 0.089 143 408 124.4 NSS News V72N1 01/16
204 Mammoth Cave System   (N.P.) Kentucky Ed./Hart/Bar. 412.000 663050 407 124.1 CRF / CKKC  +/-5 MILES 02/20
205 Weeki Wachee Spring   Florida Hernando 19.315 31085 407 124.1 Andrew Pitkin e-mail 10/19
206 Breathing Cave Virginia Bath 6.740 10847 407 124.0 Gangsta Mappers 01/18
207 Little Red River Cave              Washington Skamania 0.641 1032 406 123.7 Cascade Caver V35N6P45 06/96
208 Russell Cave   (N.M.)        (169) Alabama Jackson 11.605 18676 406 123.7 Jason Richards   11/17
209 Wooden Ladder Cave      Hawaii Hawaii 0.758 1220 406 123.7 Doug Medville 01/16
210 Sub-Solomon Cave Tennessee Franklin 0.711 1144 405 123.4 TCS 02/15
211 Water Well                                 (1747) Alabama Jackson 0.554 892 402 122.5 Georgia Underground V29N3P18-19 09/92
212 Wet Cave / Above (Well) Wet Cave Tennessee Franklin 1.414 2276 401 122.2 Speleonews V34N3 06/90
213 Fort-Pebbles Cave Tennessee Franklin 1.234 1986 401 122.2 Tenn.Cave Survey 02/15
214 Oregon Caves Oregon Josephine 3.030 4876 400 121.9 Steve Knutson 01/85
215 Main Well Tennessee Marion 1.326 2134 400 121.9 Deep Caves of TAG, John Stembel 10/16
216 Icy Fate Cave Alaska Heceta Island 0.623 1003 400 121.9 Marcel LaPerriere e-mail 08/98
217 Mega Well                                (2310) Alabama Jackson 0.506 814 400 121.9 ACS 06/16
218 Upper  Owl Cave      (Lava Tube) Hawaii Hawaii 2.655 4273 399 121.6 Doug Medville e-mail 04/17
219 Coffee Cave     (Lava Tube)                    Hawaii Hawaii 0.705 1135 397 121.0 Doug Medville e-mail 02/15
220 Caterpillar Cave      (Lava Tube) Hawaii Hawaii 1.058 1703 394 120.0 Doug Medville 03/18
221 Middle Earth Cave West Virginia Greenbrier 1.241 1998 390 118.8 WVASS Bulletin #24 06/20
222 Wizard's Well Cavern Texas Terrell 1.247 2007 388 118.3 Texas Speleological Survey via Jerry Atkinson e-mail 01/16
223 Sinnett - Thorn Mtn. Cave System West Virginia Pendleton 2.329 3748 386 117.7 Paul Stevens 07/79
224 Walt Allen (Baxters) Cave West Virginia Pocahontas 0.881 1418 385 117.3 WVASS 02/81
225 Cave Mtn. Cave West Virginia Pendleton 2.200 3541 382 116.4 Bob Gulden 06/16
226 Two Owl Cave      (Lava Tube) Hawaii Hawaii 3.132 5040 382 116.4 Peter Bosted via Doug Medville e-mail 04/17
227 Run to the Mill (Bore Hole) Cave Tennessee Cumberland 2.926 4709 381 116.1 Buddy Lane 07/86
228 Skydusky Hollow Cave System (Newberry - Bane - Buddy Penley's Cave) Virginia Bland 9.321 15000 380 115.8 Nick Socky e-mail 09/20
229 Leandras Cave Arizona Coconino 9.547 15364 378 115.2 map at park Headquarters via Greg e-mail 06/16
230 Goodenough Spring   Texas Val Verde 0.111 179 377 114.9 Texas Speleological Survey via Jerry Atkinson e-mail 01/16
231 Cottonwood Cave New Mexico Eddy 2.223 3578 370 112.8 Dave Belski e-mail 03/16
232 Poia Lake Cave Montana Glacier  1.038 1670 370 112.8 Alpine Karst V2P67-85 06/16
233 Camps Gulf Cave                   (Saltpeter) Tennessee Van Buren 7.807 12564 368 112.2 Deep Caves of TAG, John Stembel 10/16
234 Grassy Cove Saltpetre Cave        (Saltpeter) Tennessee Cumberland 7.893 12703 367 111.9 Deep Caves of TAG, John Stembel 10/16
235 Robinson Ridge Saltpeter Cave     (Saltpeter) Tennessee Cannon /Coffee 3.696 5948 365 111.3 Tenn.Cave Survey 02/15
236 Geiger Cave / Houston Hollow   (459) Alabama Jackson 2.063 3320 360 109.7 Deep Caves of TAG, John Stembel 10/16
237 New River Cave Virginia Giles 5.293 8518 359 109.4 Tim Kilby 06/16
238 Starnes Cave Virginia Giles 4.400 7081 359 109.4 VSS Long & Deep Cave Lists 02/15
239 Motheleum Cave Hawaii Hawaii 0.777 1251 358 109.0 Doug Medville 03/18
240 Fisher Ridge Cave System Kentucky Hart 130.001 209216 356 108.5 NSS NEWS V77N11 11/19
241 Flower Pot West Virginia Randolph 3.689 5937 352 107.3 WVASS Database 05/16
242 Wakulla-Leon Sinks Cave System           Florida Leon/Wakulla 35.220 56681 350 106.7 Casey McKinlay e-mail 03/20
243 Nunley Mtn.Cave System (Maria Angela Grotto) Tennessee Grundy 15.080 24269 350 106.7 David Parr per TCS 02/15
244 Byer's Cave System Georgia Dade 5.500 8851 350 106.7 Grorgia Underground V24N1 03/87
245 Millers Cove Cave Virginia Roanoke 2.500 4023 350 106.7 Phil Lucas e-mail 07/16
246 Sally Ward Cave                  Florida Wakulla 1.364 2195 350 106.7 Caves and Karst of Florida, 2008 NSS Convention 07/16