Could this be an ancient river that gold is now accumulated around?

So this technically an update to a post here a while back. After some exploration on the gold mining and geology in Sudan, theres this strip that is highlighted that completely infested with gold mines all around in this area although it is some of the roughest terrain out there and literally in the middle of nowhere. I will include a screen recording of satellite view video zooming into random places all along this are and you can clearly see the irregularity of the presence of mines in such areas; the video will be linked in the first comment (tried to upload with post but couldn’t) . Would love a professional opinion on this and this geology journey is a really fun one