In case anyone is interested

https://www.gunviolencearchive.org/

'Blanked Out Spots On China's Maps Helped Us Uncover Xinjiang's Camps

China's Baidu blanked out parts of its mapping platform. We used those locations to find a network of buildings bearing the hallmarks of prisons and internment camps in Xinjiang.

In total there were 5 million masked tiles across Xinjiang. They seemed to cover any area of even the slightest strategic importance — military bases and training grounds, prisons, power plants, but also mines and some commercial and industrial facilities. There were far too many locations for us to sort through, so we narrowed it down by focusing on the areas around cities and towns and major roads.

This is Yiwu, Hami prefecture in Google Earth, in the most recent publicly-available high resolution imagery. The photo was taken in 2006. The white marker shows the old, now-demolished prison and the red marker shows the new one on the outskirts.

Of these locations, we believe 315 are in use as part of the current internment program — 268 new camp or prison complexes, plus 47 pretrial administrative detention centers that have not been expanded over the past 4 years. We have witness testimony showing that these detention centers have frequently been used to detain people, who are often then moved on to other camps, and so we feel it is important to include them. Excluded from this 315 are 39 camps that we believe are probably closed and 11 that have closed — either they’ve been demolished or we have witness testimony that they are no longer in use. There are a further 14 locations identified by other researchers, but where our team has only been able to check the satellite evidence, which in these cases is weak. These 14 are not included in our list.

https://www.buzzfeednews.com/article/alison_killing/satellite-images-investigation-xinjiang-detention-camps