what does Tongshanjiabu and Changtse have in common?
Tongshanjiabu Tongshanjiabu () is a mountain in the Himalayas. At 7,207 m tall, Tongshanjiabu is the 103rd tallest mountain in the world. It sits in the disputed border territory between Bhutan and China. Tongshanjiabu has never been officially climbed.
Changgang County Changgang County is a "kun", or county, in north-central Chagang province, North Korea. Originally part of Kanggye, it was made a separate county in 1949. It borders Hwapyong and Nangrim to the east, Kanggye and Sijung to the west, Songgan to the south, and Chasong to the north.