Conquering The Underground Everest
Very Interesting|September/October 2021
The Dark Star cave system in a remote corner of Uzbekistan might one day be crowned the ‘world’s deepest cave’. Hidden inside the subterranean labyrinth lie geological time capsules that hold the secret to Earth’s past and future climate…
Jheni Osman
Conquering The Underground Everest

“Oranges, reds, yellows… a kaleidoscope of colour. It was like walking in the Alps in autumn. Truly amazing.” Israeli geologist Boaz Langford is describing one of the vast caverns in Dark Star – a huge cave system tucked inside the BaisunTau mountain range in an isolated region of Uzbekistan. Langford was part of the international team of scientists and cavers who explored the system in 2014.

“In another branch there are frozen lakes; elsewhere, huge waterfalls. The variety of sights is incredible. Every area is different. Dark Star is like no other. Totally unusual. I’m a scientist, and not very religious, but there is something spiritual about that place.”

Political instability and its remote location have kept the depths of Dark Star (named after a 1974 sci-fi comedy film) hidden from human eyes. But in 1990, a British team managed to reach one of the entrances, and so exploration of this dark underworld began. Around 17km of passages, along with additional entrances, have since been discovered, but all of the openings sit halfway up a 200m-high limestone cliff. And just getting to the base camp at its foot is a long and treacherous journey. Langford and his colleagues met the rest of the expedition team in the Uzbek capital Tashkent. Loading all their equipment onto a bus, they drove 160km along part of the ancient Silk Road towards Samarqand, before switching to a six-wheeled truck and heading south across arid plains in the direction of the Baisun district on the Afghan border. At the foot of the Baisun-Tau mountain range, they ditched the truck and continued on foot for two days, with donkeys lugging their gear.

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