With Basemap, users have the ability to export their spatial data in Google Earth's KML/KMZ spatial format and create a map using that application.
First, turn on all layers you want to export to KML in the Layer dropdown in Basemap. Once you have the layers you want, find the export button on the map toolbar and select the KML/KMZ - Google Earth option to automatically download your data.
With Google Earth open, drag and drop the downloaded file onto the map and double click a layer in the Places section to automatically zoom to that extent.
Click the print icon on the top menu to configure map objects (north arrow, title, scale bar, legend, etc...)
Once the map objects appear, you can click them to edit and/or click & hold to drag that object around for desired placement - The Title and Legend can be customized and moved whereas the North Arrow and Scale Bar can just be moved. You can also click and drag anywhere in the map to configure the desired extent and placement of your map data in relation to the objects. When you zoom in or out to a further extent, the scale bar adjusts automatically.
Clicking Map Options in the upper left will also give you advanced map configuration options such as adding & removing map objects, altering the background imagery, and saving/loading GE Print files. A GE Print file is a Google Earth map configuration/layout file type - Once a map layout is customized to your liking, you can save the layout as a GE Print file to re-use in the future. If you load that same GE Print file when making your next map with new data, the same layout will be set as the default in an effort to keep your paper maps consistent. (Further Map Object customization is possible with the use of HTML code).
Next to the Map Options menu is the Page Setup... menu where you can alter typical page layout options such as Paper, Orientation, and Margins.
To customize individual data layers, right-click a layer in the Places section on the left and select Properties.... In the resulting menu you can adjust settings like map symbols, colors, size, opacity, etc..See the example below on resizing the Fire Hydrants in the map:
Once changes are made to individual layers, you must 'refresh' the legend for changes to take affect in it - to do so, simply click on the legend and find the Refresh from View option at the bottom of the resulting menu to have your legend reflect any layer changes.
Once you have made all final tweaks, you can either print directly or save the map as a pdf.
For more information on custom map configuration in Google Earth click here