Proper noun
(historical) A former province of northeastern Korea under the Joseon dynasty.
The mountain range between the northern coast of the East Korea Bay and the Kaema Highlands which runs through the former province, now divided into North Korea's provinces of North and South Hamgyong.
Source: en.wiktionary.orgA command post and barracks of Punggye-ri nuclear test ground are blown up during the dismantlement process in Punggye-ri, North Hamgyong Province, North Korea May 24, 2018. Source: Internet
Another source said that North Korea has newly installed checkpoints along the border villages of North Hamgyong Province in a bid to control North Korean residents' movements to the neighboring country. Source: Internet
If that's true, it's good news following the demolition of a major nuclear test site in Punggye-ri, North Hamgyong. Source: Internet