Post by pickinduck on Jul 28, 2015 6:27:02 GMT -6 I seen about these on Ancient Aliens TV show.app1.chinadaily.com.cn/star/2003/0109/tr17-1.html
Post by sherlew99 on Jul 28, 2015 9:42:20 GMT -6 How wonderfully mysterious. This video mentions them, among other sites. Have not found anything else on these caves yet, though.
