Derinkuyu's full extent remains largely unexplored, with only a portion open to visitors. Wikipedia documents a 9-kilometer tunnel connecting Derinkuyu to Kaymakli, though the precise depth, passage width, and collapse history of these tunnels are not consistently recorded in major sources.
Nine-kilometer tunnel allegedly connects Derinkuyu Underground City to Kaymakli underground city
TürkiyeGeneral
Key facts
- Wikipedia states Derinkuyu Underground City connected to Kaymakli via 9-kilometer tunnel
- Tunnel depth estimated at 60 meters or more below surface
- Connecting tunnel reportedly narrower than main passages
- Tunnel allegedly partially collapsed, possibly intentionally
- Locals report additional 21-kilometer tunnel to Soan Lee cave city
- Connecting tunnels too narrow for comfortable human passage
Site mentioned
Sources
Derinkuyu underground city - Wikipediaen.wikipedia.org
It is the largest excavated underground city in Turkey and is one of several underground complexes found throughout Cappadocia. Derinkuyu underground city. A ...
Massive Underground City Found in Cappadocia Region of Turkeynationalgeographic.com
Archaeologists are exploring a sprawling network of tunnels and underground rooms discovered beneath a Byzantine-era fortress in Nevşehir, Turkey.
Turkey's underground city of 20,000 people - BBCbbc.com
Many are connected to Derinkuyu via carefully dug tunnels, some stretching as long as 9km. All of them are equipped with emergency escape routes ...
Derinkuyu Underground City, Cappadocia - The Maritime Explorerthemaritimeexplorer.ca
It was partially opened to the public in 1969. Here is a map of Derinkuyu with the parts in yellow being open to the public. Note the ...
Inside Turkey's Mysterious Ancient City That Once Sheltered ...news.artnet.com
The vast underground city of Derinkuyu descends 280 feet and once sheltered 20000 people in an intricate network of tunnels and chambers.
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