I have map with a vector shape file and a raster DEM file. Only those two layers on the map. In the Table of Contents, when I right-click on either layer and click Zoom to Layer, the layer shows on the map. But, when I Zoom to one of the layers, the other layer does not show. How can I get both layers to show at the same time on the same map. Is this something to do with the Geographic Coordinate System or the Projection of either layer or the Data Frame? I checked the Properties and Source and all three show GCS_North_American_1983. Do I need to Transform or Project something?