🇨🇳 Miyun District (密云区; 密雲區; Mìyún Qū) is situated in north-east Beijing. It has an area of 2,227 km² (860 sq mi) and a population of 527,683 (2020 Census). Its government seat is located in Gulou Subdistrict.
1History Miyun was one of the places where Warlord Feng Yuxiang stationed his troops in preparation of the Beijing Coup of 1924. In the 1930s, Miyun District was occupied by the Imperial Japanese Army and became part of the area controlled by the East Hebei Autonomous Council, a puppet state of Japan. The Japanese occupation was challenged, however, when a local Taoist priest managed to incite Miyun's peasantry. As member of the Yellow Sand Society, he garnered followers and convinced them that they could become immune to gunfire through magical rituals that he performed. Thus highly motivated, the peasants launched a rebellion in July 1936 and defeated an East Hebei Army unit that was sent to suppress them. Nearby Imperial Japanese Army forces were consequently mobilized against the insurgents. By September, the uprising was defeated and about 300 of Miyun's Yellow Sand rebels had been killed or wounded in the fighting.
1Administrative divisions There are 2 subdistricts, 17 towns, and 1 ethnic township in the district. The government seat of Miyun District is located in Gulou Subdistrict.
1Geography Miyun contains the easternmost point of Beijing Municipality, bordering the Beijing districts of Pinggu to the south-east, Shunyi to the south-west and Huairou to the west as well as Hebei province to the due north and east. The Miyun Reservoir, a major source of water for the Beijing Municipality, is also located in Miyun District.
1Economy: Tourist Industry A popular tourist attraction in Miyun district is Simatai, a section of the Great Wall. Another is Nanshan Ski Resort, one of the largest in the country.
1Transport • Beijing–Shenyang high-speed railway: Miyun railway station. • Beijing–Chengde railway: Miyun North railway station.
1 
 Miyun has a population of over 527,683 people. Miyun also forms part of the wider Beijing metropolitan area which has a population of over 21,640,000 people.
To set up a UBI Lab for Miyun see: https://www.ubilabnetwork.org Twitter: https://twitter.com/UBILabNetwork
Twin Towns - Sister Cities Miyun has links with:
🇯🇵 Yamanouchi, JapanLocations Near: Miyun 116.833,40.3667
🇨🇳 Huairou 116.632,40.316 d: 17.9
🇨🇳 Shunyi 116.661,40.15 d: 28.2
🇨🇳 Pinggu 117.1,40.133 d: 34.5
🇨🇳 Sanhe 117.083,40.017 d: 44.3
🇨🇳 Tongzhou 116.644,39.9 d: 54.3
🇨🇳 Chaoyang 116.442,39.926 d: 59.3
🇨🇳 Dongcheng 116.414,39.924 d: 60.8
🇨🇳 Dongcheng District 116.4,39.917 d: 62.1
Antipodal to: Miyun -63.167,-40.367
🇦🇷 Viedma -62.995,-40.808 d: 19963.9
🇦🇷 Punta Alta -62.067,-38.867 d: 19823.5
🇦🇷 Bahía Blanca -62.266,-38.718 d: 19816.1
🇦🇷 Choele Choel -65.683,-39.267 d: 19767.8
🇦🇷 Puerto Madryn -65.037,-42.773 d: 19705.6
🇦🇷 Rawson -65.1,-43.3 d: 19651.8
🇦🇷 Trelew -65.3,-43.25 d: 19649
🇦🇷 Santa Rosa -64.283,-36.617 d: 19586.9
🇦🇷 Trenque Lauquen -62.7,-35.967 d: 19524.1