I'm desperately searching for GIS data related to the Soviet prison camp system, the GULAG. There are quite a few very good maps out there, but I cannot seem to find data in order to make my own. Thinking of locations of the camps, administrative divisions of the penal system etc. Any ideas, anyone?
Found the data, finally. Here. Found it by pure chance, after searching for years, literally. Don't know much about the source of the data, except it's from a Moscow design bureau's git. They might have gotten it from the Russian NGO Memorial, they have a lot of data but I was never able to find it georeferenced.