Hexi Corridor, Dunhuang, Jiayuguan, Zhangye, Qinghai Lake, Lanzhou, 10-Day Family Road Trip.

Day 5: Zhangye—Qinghai Lake The weather was bad, so we decided to skip Zhangye Danxia, as the beauty of the Danxia landform is not visible on cloudy days. The Qilian Mountains divide Gansu and Qinghai. The route from Zhangye to Qinghai Lake crosses the Qilian Mountains. We chose to take the national highway, and the weather changed from cloudy to sunny. We passed Qilian Mountain National Park. If you have time, you can spend a day in the park, as the scenery is very different. We passed Haibei Tibetan Autonomous Prefecture in Qinghai and saw an earthen wall by the roadside. I asked Baidu and found out that it was indeed an old object. It was built by the brother of Consort Hua in the TV series "Empresses in the Palace." 🌟🌟🌟 Yongan Ancient City was built in 1725 (the third year of the reign of Emperor Yongzheng of the Qing Dynasty). After General Nian Gengyao suppressed the rebellion of Lobzang Danjin, he built Yongan Camp Village at the throat of the Gansu-Qinghai passage to stabilize the northwest border and promote the economy of the west.