dong Midong - 迷洞

Détail


Nom de la grotte : Midong - 迷洞
Autres noms : lost cave, Rice cave
Province, Préfecture, District :
Chongqing 重庆, , Wulong 武隆县
Latitude Nord - Longitude Est :
29.20171 - 107.9412
Altitude (m) : 920
Développement (m) : 1 253
Profondeur (m) : 261
Profondeur - / + (m) : 0 /
Volume (m3) :
Géologie :

1Entrée : Midong 迷洞,

Carte



Description 1



Follow road South East from Tianxing. After about 1 km turn left at junction 1. Continue straight on, ignoring the road to the left (which leads to Da Xiao Dong) at 0785500 3234832. When the road ends after about 3 kms at 0785758 3233864, take the path South East down to the large Mi Dong entrance depression at the head of the valley.

The entrance depression drops steeply 110m to a vertical shaft 100m in diameter and 80m deep. Upstream ascends steeply and there appears no obvious way on at floor level. The passage downstream measures 40m high and 15m wide and contains many pools and short climbs. The amount of rigging and float cord required depends on water levels. After 100m a short handline is required to to enter a small plunge pool. 50m later another ahdnline is required in higher water. A 30m rope was used to assist for the the following cascades as well. 250m from the entrance a rope is required on a 5m pitch. 250m later 3 more pitches are met which drop into a large strongly drafting streamway which eventually requires swimming in wet conditions. In drier conditions walking passage is encountered with the main stream sinking into gravel just beyond an aven after about 300m. A sandy passage continues to a rubbish filled inlet beyond which a gurgling sump is immediately encountered. This might be open in lower water conditions.

Several lakes and waterfalls where slings/float cord are recommended.

This cave responds dramatically to rain. Many climbs in the streamway will become impassable or require rigging with an increase in water levels.

http://www.hongmeigui.net/
http://www.hongmeigui.net/
Analyse : Web
Site sur les campagne d’expéditions du club de Hong Mei Gui. Dans les provinces du Guizhou, Guangxi, Yunnan. Explorations dans les comtés de Leye, Nandan, Guilin. Données chiffrées sur les cavités topo données topo et photo chronique d’expédition.

1572 caractères - lu : 48 Fois


Bibliographie 4



http://www.brianjudd.pwp.blueyonder.co.uk/china:china96/jaingkou/wulong3/wulong3.html#top

Site sur les projets China-Caves et notamment les expé Yangtze Gorges expeditions 94 et 96 et les perspectives. Topos, photos, cartes, descriptifs, anecdotes...
Source : Web

http://www.hongmeigui.net/
http://www.hongmeigui.net/
Site sur les campagne d’expéditions du club de Hong Mei Gui. Dans les provinces du Guizhou, Guangxi, Yunnan. Explorations dans les comtés de Leye, Nandan, Guilin. Données chiffrées sur les cavités topo données topo et photo chronique d’expédition.
Source : Web

Aut VAR : Chris Densham, Erin Lynch, Brian Judd, Anne Lynch, Eoghan Lynch, Conor Mac Grath, Owen Willliams, Lev Bishop (2001)
China cave project Wulong County Expedition 2001- CHINA CAVES 2001 REPORT
Rapport d’expédition anglo irlandaise CCP /hmg project dans les contés de Wulong et Fengdu (Chongqing). Topo photos. 45 p. Compilé à partir des logbook de l’expédition
Source :

Aut. Var. edited by Erin Lynch
Hong Meigui Tian Xing 2004 Expedition. Cave expedition to Tian Xing, Chongqing Municipality, China 29th September to 5th December 2004 Final Report.

Source :


Images 0



Topographie 0




Expédition 4


Cette grotte a été explorée au minimum par cette (ces) expédition (s) :




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