Starting a project to map out prison locations in the Tibet Autonomous Region (TAR) is quite a daunting task. Considering there is little to no information and such work has not been done in the region previously. The Tibet Research Project is an attempt to map all prison locations in Tibet, similar to the work that has been done in Xinjiang.
The article by the Tibet Research Project showcases a few of the methods and sources utilised to identify and verify many hundreds of prisons and detention centres. By using historical satellite imagery, old pictures found on the internet, this story by the Tibet Research Project serves as an introductory lesson into the world of geolocation, imagery analysis, and Google Earth.
More geolocation sources: