Longest caves in Thailand

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The longest caves list is updated to 1 July 2019. It has all the caves that have been surveyed to a length of over 1,000m.
 


> No. Name Province Length Surveyors Date
1 Tham Phra Wang Daeng Phitsanulok 13,789m RFD/CSS/OCC/SMCC 1997-2004
2 Tham Mae Lana Mae Hong Son 12,720m Australian expeditions 1986-1992
3 Tham Lom-Tham Nam System Chiang Mai 12,600m ESB 2015-2019
4 Tham Yai Nam Nao Phetchabun 10,597m SMCC 2004-2014
5 Tham Luang Chiang Rai 10,316m APS/BEC/SMCC/Unsworth 1986-2016
6 Tham Nam Lang Mae Hong Son 8,950m Australian expeditions/D. Smart et al. 1986-1993
7 Tham Takobi Tak 7,346m SMCC 2000-2003
8 Tham Krachaeng Yala 5,633m Price et al. 1993-2000
9 Tham Nam Wang Si Thamma Sokarat Nakhon Si Thammarat 5,200m Page Ashwell et al. 2011-2014
10 Tham Chiang Dao Chiang Mai 5,170m APS 1985
11 Tham Pha Phueng Nan 4,750m SMCC 2005-2014
12 Tham Pung Hung Mae Hong Son 4,566m Australian expeditions 1990
13 Tham Ban Nam Mut Kanchanaburi 4,161m CSCA 1992
14 Tham Pha Mon Mae Hong Son 4,050m APS 1985
15 Tham Khang Khao Phitsanulok 4,022m RFD/CSS/SMCC/OCC 2003-2018
16 Tham Le Stegodon Trang/Satun 3,389m Department of Mineral Resources 2017
17 Tham Nok Nang En Kanchanaburi 3,232m GSSS 1988
18 Tham Sua/Tham Lom Mae Hong Son 3,075m Smart et al. 1993
19 Tham Phra Sai Ngam Phitsanulok 3,026m RFD/CSS/SMCC 1997-2018
20 Tham La-ong Nan 2,969m Khun Sathan National Park 2019
21 Tham Nam Mut Kanchanaburi 2,938m CSCA 1992
22 Tham Phu Khieo Chaiyaphum 2,866m Checkley et al. 1989
23 Tham Nam Tok Kanchanaburi 2,710m CSS 1996
24 Tham Susa Mae Hong Son 2,646m Australian expeditions 1992
25 Tham Loe Pu Tak 2,625m SMCC 2002
26 Tham Maa/Tham Yang Nan 2,371m SMCC/Harper & Unsworth 2016-2018
27 Tham Kleab Yai Chiang Mai 2,190m APS 1988
28 Tham Nam Dan Phitsanulok 2,137m RFD/CSS/SMCC/OCC 2002-2004
29 Tham Lumphini Suan Hin Saraburi 2,019m TCKG/SMCC 1998-2003
30 Tham Thewada Krabi 2,018m SMCC 2013
31 Cave NA0122/NA0135 Nan 1,929m SMCC 2014
32 Tham Ki Mi Chiang Mai 1,913m Alpinistyczny Klub Eksploracyjny w Sopocie 1987
33 Tham Than Lot Tak 1,877m RFD/OCC 1998
34 Tham Ya Wua Yai/Tham Phet Phang Nga 1,876m APS/RFD 1987
35 Tham Huai Tong Thai Kanchanaburi 1,819m RFD/CSS/CSCA/TVCC 2004
36 Tham Nam Ru Hua Koa Mae Hong Son 1,806m APS/Australian expeditions 1986
37 Tham Mae Pla Ao Chiang Mai 1,762m Thailand Karst Hydrologic Survey & Zeitoun et al. 1984-2008
38 Tham Huai Kun Mae Hong Son 1,747m Australian expeditions 1986
39 Tham Hong Nakhon Si Thammarat 1,730m Ashwell et al. 2012-14
40 Tham Tab Tao Chiang Mai 1,685m SMCC 2003
41 Tham Lod Mae Hong Son 1,666m Australian expeditions 1983
42 Tham Huai Chi Laeng Chaiyaphum 1,602m Checkley et al. 1989
43 Tham Phu Pha Phet/Tham Khong Kha Lot Phattalung 1,599m RFD/ACG 2001-2002
44 Tham Mae Usu Tak 1,586m SMCC 2003
45 Tham Pha Ngam Lampang 1,578m SMCC 2009-2012
46 Tham Racha Phuttha Phang Nga 1,504m SMCC 2010-2012
47 Tham Ruea Phitsanulok 1,408m RFD/OCC 2003
48 Tham Nam Tok Mae Hong Son 1,405m Australian expeditions 1986
49 Tham Duean/Tham Dao Phitsanulok 1,382m RFD/CSS 1997
50 Tham Sai Thong Chiang Rai 1,373m V. Unsworth & P. Collett 2015-2017
51 Tham Pang Kham Mae Hong Son 1,370m Australian expeditions 1986
52 Tham Hued Mae Hong Son 1,365m APS 1988
53 Tham Pha Daeng Chiang Mai 1,359m SMCC/CMRCA 2005-2013
54 Tham Ton Ai Duea Phattalung 1,345m Ashwell 2016
55 Tham Lek Lek Krabi 1,332m Krabi Family Expedition 2016
56 Tham Nam Phra Tat Kanchanaburi 1,332m NZSS 1992
57 Tham Pha Daeng Mae Hong Son 1,323m Australian expeditions 1988
58 Tham Phaya Naak Phetchabun 1,285m SMCC 2003-2006
59 Tham Tapan Phang Nga 1,250m Australian expeditions 1986
60 Tham Pha Kaeo Phitsanulok 1,217m RFD/OCC 2004
61 Tham Nam Hu Mae Hong Son 1,201m Spies et al. 1999
62 Tham Pha Thai Lampang 1,185m APS 1985
63 Tham Phung Chang Phang Nga 1,150m APS 1988
64 Tham Mor Tak 1,135m RFD 1999
65 Tham Sao Hin Kanchanaburi 1,130m Australian expeditons 1990
66 Tham Plah Surat Thani 1,103m BEC 1998
67 Tham Than Nam Lot Yai Chumphon 1,095m APS 1988
68 Tham Chao Ram Sukhothai 1,091m RFD/CSS 1996-1997
69 Tham Krata Lamphun 1,057m BEC 2001
70 Tham Yai Nakarat/Tham Kai Phisanulok 1,057m A. Thoma 2013-2016
71 Tham Khun Huai Tum Lek Phitsanulok 1,035m D. Smart & I. Hollis 2004
72 Tham Mae Usa Tak 1,019m SMCC 2003