This report is part of a comprehensive long-term project undertaken by HRNK to use satellite imagery to shed light on human suffering in the DPRK (more commonly known as North Korea) by monitoring activity at political prison and detention facilities throughout the nation. This study endeavors to both establish a preliminary baseline report and detail activities observed during 2002–2020 at a detention facility variously identified by former prisoners and researchers as the “Chŭngsan No. 11 Ro-dong-dan-ryeon-dae” (Chŭngsan No. 11 Mobile Labor Brigade), Chŭngsan Kyo-hwa-so No. 11 (Chŭngsan No. 11 Re-education Through Labor Camp), or the Chŭngsan Kwan-li-so No. 11 (Chŭngsan No. 11 Political Prison Camp). To ease readability, however, the designation “Chŭngsan No. 11 Detention Facility” will be used throughout this report.