For my dissertation research, I am using ArcMap 10.3 to trace the course of a river on current satellite imagery as well as historic imagery. The study area is too large to fit one image and thus I need to stitch them together so to speak. I manage to georeference one image to a basemap but as soon as I start the second, the first resets itself meaning I lose hours of georeferencing data.
Is there a way to stitch several images to a single basemap?? Or is it just a case of doing it by eye in Publisher or equivalent and then using that image?
Any help would be great!!