Definition of "Yanggang"

According to the north Korean Central Broadcasting Station on August 15, the Central People's Committee (north Korea's highest government body) issued on August 12 two administrative decrees, one to name Pungsan County of Yanggang Province as Kimhyonggwon County and Pungsan District Kimhyonggwon District, and the other to name Pabal Senior High School in Pungsan County Kimhyonggwon Senior High School, in order to preserve the land associated with […] and Pungsan County in Yanggang Province Kimhyonggwon District and Kimhyonggwon County. Kim Hyong-gwon is President Kim Il-sung's deceased uncle. The committee also issues a decree naming Pabal Senior High School of Kimhyonggwon Senior High School.

1990, North Korea News‎, numbers 508-559, pages 3, 6

[…] in Hwangsuwon-ri of Kimhyonggwon County of Yanggang Province, an area situated north of the Pujollyong mountain range.

1999, Summary of World Broadcasts: Asia, Pacific‎, number 3575-3587, page 5, column 1

During a scorching lowland heat wave the following August, the Kims prudently chose to focus their guidance on remote Pungsan County, in the high, cool mountains of Yanggang Province.

2004 September, Bradley K. Martin, “Yura”, in Under the Loving Care of the Fatherly Leader: North Korea and the Kim Dynasty‎, 1st edition, Thomas Dunne Books, page 223

“[China’s] Changbai county [in Jilin province] and [North Korea’s] Hyesan [city in Yanggang province] are so tense that one barely sees any cars or people around,” said the source, who also asked to remain unnamed.

2018 September 20, Joonho Kim, Joshua Lipes, “North Korea Shuts Down Illegal Cell Phone Access to Chinese Networks Amid Kim-Moon Summit”, in Leejin Jun, transl., Radio Free Asia‎, archived from the original on 20 September 2018‎