Here's an update to what DirtDoc posted about the deep cave in China:
THE Hong Meigui CES Tianxing 2007 expedition to China's Wulong county
in Chonquing minicipality began by re-descending Miao Keng, and
quickly connected it to Qikeng Dong. An attempt to bolt outwards and
upwards over the 491m shaft in Miao Keng was inconclusive. Working
from an underground camp at a central location within the system, the
expedition found several extensions and finally made the long-sought-
after connection to Dongba Dong.
Miao Keng II, an entrance only 20m from Miao Keng, also connected to
Qikeng Dong and the previously terminal choke only 200m into
Xiaoguchiwan Dong was passed to reach a stream passage in shale, which
sumps downstream but has several upstream leads. A traverse above the
third pitch of the same cave made a connection to Liuchi Aokou Xia
Dong - itself part of the main system.
Tianxing Dongxuexitong (Tianxing Cave System) now stands at 1,020m
deep and 35,480m long with seven entrances, making it the fourth
longest in China and the first in the country to pass 1,000m deep.
Report: Duncan Collis
Descent (199) DEC/JAN 2007/08 page 19
The length and depth figures are the same as those previously posted.
What is new is that the connection has been made.
The lengths some people will go to to avoid a nice 491-meter free drop
are amazing. They have 37 rebelays in that shaft. TAG cavers would
probably bolt out a ways at the top to get a sporting free drop,
instead of an underground abstacle course. -- Mixon
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