The Khyunglung site is an intricate cave complex located on the northern bank of the Sutlej River, approximately 30 km west of the hot springs and gompa of Tirthapuri and the nearby coal mining town of Moincêr/Montser.
However, the absence of a chimney in most of these caves, as evidenced by their smoke-blackened ceilings, suggests that smoke would have exited through the sole entrance, resulting in a thick smoky interior during fire use.
However, the Sutlej River in this region is characterized by its poor quality, mainly due to a large sulfurous hot spring upstream.
It is suggested that Kyunglung may not have been a conventional "city" per se, but rather served as a gathering place for Bonpo magicians during specific events when various clans congregated.
[2] Possible camping grounds for the main retinue could have been located in the broader valley upstream from the modern village of Khyunglung or in the area between Gurugem and Tirthapuri, which is still frequented by nomadic yak and sheep herders.
List of towns and villages in Tibet "Atlantis in the Himalayas" - An article by Jürgen Kremb featuring a photo of Khyunglung in Spiegel Online, April 28, 2006.