Hi, I have some aerial photography data sets as an .ecw file and I want to import them into ArcGIS and then spatially reference them so I can just display them with a coordinate grid. I've imported the data fine, however I can't seem to assign a coordinate system that is recognised for the data. Is there a way I can upload the coordinate system in an accompanying .shp file? Any help would be greatly appreciated, Cheers, Claire
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