mjgraham welcome to the forum and thank you for sharing your suggestion. 👋 That is an interesting use-case for sure.
You'd need the geotag on each image, correct? If so, that probably isn't something I am going to pursue because it requires the location permission. Google Play is extremely particular about location services, especially if it isn't a "substantial feature of the app" (understandably).
If it's just that you want to save where you captured a set of images, I could add a way to add a note for a project or something like that where the user would manually put it whatever they wanted. Would that work for you?