List of deepest caves in Bulgaria 14.12.1998 (more than -100 m.)Cave Name, Settlement, District, Depth m., Lenght m. - Raichova dupka, Cherni Osam, Lovech -377, +10 3 333
- Barkite 14, Vratza, Vratza -356 2 600
- Iamata na Kipilovo, Sliven">Sliven, Sliven">Sliven -350
- Tizoin Gubesh, Sofia -320 3 599
- Beliar Gorno Ozirovo, Lovech -282 2 360
- Drangaleshkata dupka Mugla, Smolian -255 1 142
- Lednika, Kotel, Sliven -242 1 367
- Malkata yama, Cherni Osam, Lovech -232 1 101
- Mugliviyat snyag Tvarditsa, Burgas -230
- Muglivata, Kotel, Sliven">Sliven -220
- Kazite Zimevica, Sofia -205 2 560
- Vihren Bansko, Blagoevgrad -200
- Barkite 18, Vratza, Vratza -178
- Pukoia Pavolche, Vratza -178
- Lisek, Drianovo Gabrovo -164
- Uzhasat na imaniarite, , Sliven -158
- Kambankite Mugla, Smolyan -158
- Borova dupka, Cherni Osam, Lovech -156
- Blagova yama, Etropole, Sofia -153
- Yavorec, Zverino, Vratza -147
- Kladeto, Rudozem, Kardjali -147
- Malia Sovat, Briazovo, Lovech -140
- Akademik ,, Sliven -140
- Kurvavata lokva, , Sliven -140
- Nenaimenovana Ginzi, Sofia -135 2 217
- Aleko, Ilindenzi, Blagoevgrad -132
- Druzba, Dobrostan, Plovdiv -130
- Bunderiza, Bansko, Blagoevgrad -125
- PPD Bosnek, Sofia -125 1 020
- Malkata Balabanova, Komstiza, Sofia -125
- 20 godini Akademik, Bansko, Blagoevgrad -118
- Manuilovata, Ribnovo, Sofia -115 2 119
- N9 Bansko, Blagoevgrad -115
- Tainite Ponori, Shoumen, Shoumen -115 1 283
- Ivanova voda, Dobrostan, Plovdiv -113
- Haidushkata propast, Bistrez, Vratza -108
- Lednizata Gela, Smolyan -108 1 419
- Pticha dupka Cherni Osam, Lovech -108
- Partizanskata, Glogene, Lovech -107
- Goliamata temnota, Drenovo, Sofia -106 2 000
- Golemata voda, Karlukovo, Lovech -105
- Bezdunia pchelin, Yablaniza, Lovech -105
- Moroviza Glogene, Lovech -105 3 250
- Cheliustniza Bansko, Blagoevgrad -104
- Panchovi gramadi, Zverino, Vratza -104
- Kumaniza, Cherni Osam, Lovech -104 1 656
- Yasenski oblik, Yablaniza, Lovech -104
- N14 Bansko, Blagoevgrad -103
- Pleshovska dupka, Prevala, Montana -102
- Kunchova vurpina, Tepava, Lovech -100
- Ruse Emen, Lovech -100 3 300
- Stotaka Brezovo, Lovech -100
| List of longest caves in Bulgaria14.12.1998 (more than 1 km long)Cave Name Settlement District Lenght m. Depth m. - Duhlata, Bosnek, Sofia 17 600 -70
- Orlova Chucka Pepelina Ruse 13 437
- Imamova dupka Yagodina, Plovdiv 8 501
- Vreloto Bosnek, Sofia 5 280 +85
- Goliamata Balabanova, Komshtiza, Sofia 4 800
- Prikazna, , Bourgass 4 782
- Boninskata, Krushuna, Lovech 4 530
- Temnata dupka Lakatnik, Sofia 4 500
- Anduka Drianovo, Lovech 4 000
- Tizoin, Gubesh, Sofia 3 599
- Bacho Kiro Drianovo, Lovech 3 500
- Raichova Dupka, Cherni Osam, Lovech 3 333 -377, +10
- Ruse Emen, Lovech 3 306 -100
- Vodnata Pestera, Cerovo, Sofia 3 264
- Moroviza Glogene, Lovech 3 250 -105
- Lucifer Zelenich, Bourgass 3 200
- Ponora Chiren, Vratza 3 172
- Emenskata pestera, Emen, Lovech 3 113
- Marina dupka, Genchevzi, Lovech 3 073
- Bambalova dupka, Emen, Lovech 2 923
- Troana Emen, Lovech 2 750
- Barkite 14, Vratza, Vratza 2 600
- Beliar, Gorno Ozirovo, Lovech 2 560 -282
- Kazite, Zimevica, Sofia 2 560 -205
- Parnizite, Parnizite, Lovech 2 500
- Magura Rabisha, Montana 2 500
- Izvorat Borino, Plovdiv2 480
- Devetashkata peshtera Devetaki, Lovech 2 442
- Zandana, Shoumen, Shoumen 2 220
- Nenaimenovana, Ginzi, Sofia 2 217
- Baiov komin, Drashan, Montana 2 196
- Manuilovata, Ribnovo, Sofia 2 119 -115
- Goliamata temnota Drenovo, Sofia 2 000 -106
- Vodopada Krushuna, Lovech 1 995
- Goliamata Mikrenska, Mikre, Lovech 1 921
- Machanov trap, Zdravkovez, Lovech 1 907
- Mladenovata propast, Chiren Vratza 1 723
- Kumaniza, Cherni Osam, Lovech 1 656
- Urushka Maara, Krushuna, Lovech 1 600
- Lepeniza Rakitovo, Pazardzhik 1 525
- Krivata pesht, Ginzi, Sofia 1 500
- Maianiza, Zerovo, Sofia 1 426
- Lednizata Gela, Plovdiv1 419 -108
- Izvorat Iantra, Lovech 1 400
- Lednika, , Bourgass 1 367 -242
- Toshova dupka, Glavazi, Montana 1 302
- Vodni pech, Dolni Lom, Montana 1 300
- Bashovishki pech, Oreshez, Montana 1 298
- Malkata Mikrenska, Mikre, Lovech 1 295
- Tainite Ponori, Shoumen, Varna 1 283
- Sopotskata, Sopot, Lovech 1 255
- Maglivata, , Bourgass 1 244
- Zadunenka, Karlukovo, Lovech 1 150
- Drangaleshkata, Mugla, Plovdiv1 142 -255
- Vurlata, Cherni Osam, Lovech 1 110
- Malkata iama, Cherni Osam, Lovech 1 101
- Aladjanskata, Gortalovo, Lovech 1 083
- Gornik, Krushuna, Lovech 1 074
- Sedlarkata, Sadovec, Lovech 1 070
- Duhaloto, Aprilzi, Lovech 1 040
- PPD Bosnek, Sofia 1 020
- Vodnata peshtera Peshtera, Plovdiv1 000
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