Hello everyone.
I'm pretty new to using GIS. I'm building a map on top of the imagery basemap provided with ArcMap. When I went to add my first layers, a warning popped up with the titles "Geographic Systems Warning." It says "The following data sources use a geographic coordinate system that is different from the one used by the data frame you are adding into." My layer is in GCS_North_American_1983. I understand that I need to transform the data. When I click the transformations tab, it seems like my option is to transfrom from GCS_North_American_1983 to GCS_WGS_1984.
