Zhangye is located in the northeast of Shandan. Both Zhangye and Shandan are located in Gansu Province, China. Baidu map shows that Zhangye is located in the northeast of Shandan, about 160 km away. Zhangye is a city located in the northwest of Gansu Province, China, and a prefecture-level city in Gansu Province. Located at the intersection of Qilian Mountain and Hexi Corridor, the geographical coordinates are 99 53 ′ to104 42 ′ east longitude and 36 42 ′ to 39 40 ′ north latitude. Zhangye has a total area of 39,436 square kilometers. Shandan is a county-level city located in the southeast of Zhangye City, Gansu Province, China, and belongs to the county-level administrative unit under the jurisdiction of Gansu Province.