JD Ultra-Trail Great Wall by UTMB®

云泉寺或云泉禅寺，位于中国河北省张家口市赐儿山，为张家口市桥西区的一个省级文物保护单位，类型为古建筑，公布时间为1993年7月15日。

水母宫是一处位于中国河北省张家口市主城区西北3.5公里处，卧云山山麓的森林公园，为张家口市重点文物保护单位。建于清朝乾隆四十七年（公元1782年），内供奉有水母娘娘。相传王母娘娘北经卧龙山时感到干渴，周围却无水可喝，便划地为泉，后在泉上建成水母宫。抗日战争时期，冯玉祥将军的察哈尔民众抗日同盟军指挥部就曾设水母宫内白龙洞。抗日同盟军北路前敌总指挥吉鸿昌也在此指挥过抗日运动，建有吉鸿昌烈士纪念馆等。

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. In 2020, its population was 4,118,908 inhabitants, with an area of 36,861.56 square kilometres (14,232.33 sq mi), divided into 17 counties and districts. The built-up (or metro) area, made of Qiaoxi, Qiaodong, Chongli, Xuanhua, Xiahuayuan Districts, is largely conurbated, with 1,413,861 inhabitants in 2020 in an area of 5,266 km2 (2,033 sq mi). In 2024, the registered population of the whole region is 208.896 million. Since ancient times, Zhangjiakou has been a stronghold of military significance and vied for by multiple sides, hence it is nicknamed the Northern Gate of Beijing. Due to its strategic position on several important transport arteries, it is a critical node for travel between Hebei and Inner Mongolia and connecting northwest China, Mongolia, and Beijing. Dajingmen, an important gate and junction of the Great Wall of China, is located here. In the south, Zhangjiakou is largely cultivated for agricultural use. In the north, Bashang is a part of the Mongolian plateau and dominated by grasslands. The forest coverage reaches 37%, earning Zhangjiakou the title of National Forest City. According to the Ministry of Environmental Protection, Zhangjiakou has the freshest air and the least PM 2.5 pollution of all Chinese cities north of the Yellow River. Zhangjiakou also possesses 4.6% of China's wind energy resources, and the city ranks second in solar energy use. Zhangjiakou was one of the host cities at the 2022 Winter Olympics.<

大境门位于中国河北省张家口市桥西区（主城区北部），是明长城的一个重要关口。大境门与山海关、嘉峪关、居庸关并称为长城四大关口，并是四大关口中唯一以“门”命名的关口。