The rift valley is located in Pinglu, Shanxi on the Loess Plateau, a highland area in north-central China covering some 400,000 square km. 

It was formed due to movements within the earth's crust and its about 10 km long.

https://video.nostr.build/347bc556e037675710f4235d9ef8aada98d417d5850625914250564c906f4891.mp4