Bayangovi (Mongolian: Баянговь, also Bayangov' or Bayangobi, Rich gobi) is a sum (district) of Bayankhongor Province in south-eastern Mongolia. It is situated approximately 40 kilometres south of the lake Orog Nuur, 170 km from provincial capital Bayankhongor and 650 km south-west of Ulaanbaatar. Bayangovi is surrounded by the Ikhee Bogd mountain range, and by desert.
Outside the small town of Bayangovi are a number of desert sites of natural and cultural interest.[1] About 90 km east of Bayangovi lies Tsagaan Agui. The cave once housed Stone Age human beings 700,000 years ago and features a crystal-lined inner chamber. At Tsagaan Bulag, 18 km south, a white rock outcrop has the faint imprint of an anthropomorphic figure. Sixty-six kilometres south-west of Bayangovi is the petrified forest at Ulaan Shand. The area is littered with stone logs and stumps.