I have numerous datasets using State Plane coordinates (North Oregon actually). I want to use the ESRI World Street Map,a tiling, as a basemap. It was created using World Mercator Auxiliary Sphere as cs. Am I correct in thinking that it will not work, unless the map frame itself also uses World Mercator Auxiliary Sphere? I don't believe tilings can be reprojected, and I don't believe that World Street Map is available in any projected coordinate system other than Web Mercator Auxiliary Sphere.True?
In the past I used basemaps from Business Analyst. These were normal layers, available at several different scales, but which also admitted scaling to any arbitrary magnification, and could also be reprojected. I would prefer to keep using them. But if you try and import those feature classes into