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For my GIS project for my class, I have downloaded several vector layers from different websites (polyline of the continental divide, a boundary polygon of New Mexico, a rivers and water bodies layer of the United States, etc.). Obviously, these features in real life are associated with each other but when I import each of these shapefiles into ArcMap they are not overlapping as they should (i.e the continental divide does not cut through the U.S. polygon or the New Mexico polygon). I noticed that the scales for each shapefile are completely different from each other (i.e. 1:143 vs. 1: 4,203,394), is this the problem and if so does anyone know who to fix this, and if not, does anyone know what the problem I am having actually is and how to fix it.