Dunhuang Yardang National Geopark, officially Dunhuang UNESCO National Geopark, is a 2015 approved UNESCO national geopark in Dunhuang, Gansu Province, China, that shows the Yardang geological feature of the area. Fully certified, the park must also be a member of the regional network, in this case the Asia Pacific Geoparks Network an…Dunhuang Yardang National Geopark, officially Dunhuang UNESCO National Geopark, is a 2015 approved UNESCO national geopark in Dunhuang, Gansu Province, China, that shows the Yardang geological feature of the area. Fully certified, the park must also be a member of the regional network, in this case the Asia Pacific Geoparks Network and the Global Geopark Network. Yardangs, the chief feature of geologic interest, were created over time by the soft part of the earth's surface being eroded by wind and rain, with the hard part of the rocks remaining in the desert.