Here is what I did and am trying to figure out: I took a table with coordinates and added XY then exported to a shapefile (which is attached in the Everylocation shapefile). Then I added this shapefile into a Arcmap project with a layer called PublicNotices (which is attached). When I added the Everylocation shapefile, some of the points are displayed out in the ocean. I began to think that those points out in the ocean were the wrong coordinates and I was going to delete them. Then I wanted to compare them to the publicnotice shapefile. The PublicNotice file has some of the same points as the Everylocation file and the two should overlap. How do I determine if this is a projection issue and fix it or to determine which file has the wrong coordinates?