What is my elevation?

Zhangjiakou, also known as Kalgan and by several other names, is a prefecture-level city in northwestern Hebei province in Northern China, bordering Beijing to the southeast, Inner Mongolia to the north and west, and Shanxi to the southwest. By 2020, its population was 4,118,908 inhabitants on 36,861.56 square kilometres (14,232.33 sq mi), divided into 17 Counties and Districts. The built-up area made of Qiaoxi, Qiaodong, Chongli, Xuanhua, Xiahuayuan Districts largely being conurbated had 1,413,861 inhabitants in 2020 on 5,266 km² (2,033 sq mi).