https://www.worldheritagesite.org/tentative/id/5989The Xinjiang Yardangs have two "locations", I say that in quotes because these areas are incredibly huge. The current location is for the massive Junggar basin in the northern part of Xinjiang.
The other one, Hami basin, stretches all the way to Lop Nur which wikipedia has as 40.166667, 90.583333 so I would plant it right in-between the two (city and nuclear site).