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1. In the Map ribbon, in the Layer group, click Basemap and select Light Gray Canvas.
2. In the Contents pane, uncheck the World Light Gray Reference layer to toggle it off.
3. In the Catalog pane, in the Databases folder, expand the LayoutTutorialDataLayouts.gdb geodatabase.
4. Right-click the BlockGroupCensusData feature class and select "Add to Current Map."
   
   

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