So here is something pretty interesting I have been looking at for a while now: A seemingy unknown military production complex in Jabal Garri, Sudan. If this facility was in Iran or Egypt, it would be considered large, but for Sudanese standards it is gigantic. 
The facility is located at 16.251586° 32.646261° next to the river Nile some 80km North of Khartoum and 13km North of Khartoum Refinery in a mountain range named Garri. Neither in English nor Arabic-language media I could find any info about it.
All entrances are well-guarded. With most buildings located in ravines and others shielded by a large wall, the facility is most likely invisible from nearby roads.
Inside there is a myriad of buildings, some look like storage buildings, others seem to be associated with chemical production. Several feature tell-tale high-end lightning arrestors showing explosive materials are handled inside.
A very unusual feature for Sudan is the presence of about twelve tunnel entrances visible in satellite pics
Another interesting feature is a pumping station next to the river nile transporting water through pipelines to some parts of the facility, which I guess might be necessary for some of the chemical manufacturing processes.
But wait, there is more! There is also a smaller Northern part of the facility with revetted storage buildings, more tunnels, a communications antenna and an emplacement for anti-aircraft artillery 16.279963° 2.727937°
The earliest picture available shows some parts of the facility already existed in 2004. A lot of the stuff was added in an expansion later. Pics from 2012 make it seem like the construction of the main facilities was ending just around that time
Before its political u-turn in 2015 Sudan was at the receiving end of several Israeli air strikes, one of which levelled its well-known Yarmouk miliary productions complex inside Khartoum. However, I could not find any indication the Jabal Garri site was ever targetet.
END. If anyone has any more information, corrections or observations I would love to hear them!
