This report is part of a comprehensive long-term project undertaken by HRNK to use satellite imagery and former prisoner interviews to shed light on human suffering in North Korea by monitoring activity at political prison facilities throughout the nation. This is the second HRNK satellite imagery report detailing activity observed during 2015 to 2021 at a prison facility commonly identified by former prisoners and researchers as “Kwan-li-so No. 14 Kaech’ŏn” (39.646810, 126.117058) and serves as an update to our earlier 2015 report entitled North Korea: Imagery Analysis of Camp 14, which analyzed imagery from 2002 to 2014.