tried to debunk the '150,000 year old alien pipes' in Qinghai and I mostly succeeded. mostly.

Everyone reposts the Baigong Pipes as proof of a pre-human industrial site. Mount Baigong, ~40km SW of Delingha, Qinghai — triangular cave mouth by Toson Lake, rusty tube things in the rock and running down to the lake, some 40cm across. Thermoluminescence 'dated to 150,000 yrs', cue spaceship talk.……