In North Vietnam, inside the the Cao Bang UNESCO Global Geopark, a strange mountain is called: "Eye of God” mountain (called also One Angel Eye moutain),  right on the Nam Tra waterfall. The mountain is located in the valley of Ban Danh, in Quoc Toan commune (Tra Linh), at about 2 km from the scenic province of Ho Thang Hen. with majestic and wild beauty. ...

This episode is also available as a blog post: 

http://railwaycafe.travel.blog/2021/07/04/the-one-eye-mountain-cao-bang/