Bellingcat does this and more - they also teach a course on it they triangulated the location of the ISIS execution videos using nothing more than shadows and

Bellingcat does this and more - they also teach a course on it they triangulated the location of the ISIS execution videos using nothing more than shadows and geographical mounds in the desert https://www.bellingcat.com/tag/geolocation/ https://www.bellingcat.com/tag/geolocation/