I'm a newbie to this. I would like to upload an overlay to some data. Or upload a base map. Is there an easy way to do this?
It is very easy to upload a basemap.
1. Click the drop down arrow next to the "Add Data" button.
2. Choose "Add Basemap..."
3. Choose which you would like to add.
4. Make sure the Basemap layer is below the data you want to show in the Table of Contents.
Retrieving data ...