I am working with a watershed map, and I was wondering if there is a function or a way that I can get ArcMap to number the watersheds. For instance, if we have watershed X numbered as 0, I want the watersheds that surround/or share a boundary with watershed X to be numbered 1, and the watersheds that surround/ or share a boundary with the number 1 watersheds to be numbered 2 and so on. Is there a way this can be done by building a model in ModelBuilder? I would like to save it so when I change a watershed layer and run the model it will do the same in a new watershed area.
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