ExpertGPS shows your GPS data on USGS aerial photos, using a UTM projection. As you move around the map, ExpertGPS will retrieve photos over the Internet and display them on your screen. The map server that ExpertGPS uses has aerial photos for most locations in the continental United States. Coverage is not available for much of Alaska, and in some parts of the Mountain West.
Read about the basic commands for interacting with all of the maps in ExpertGPS.
To show an Aerial Photo Map, clickon the .
To allow ExpertGPS to retrieve aerial photos over your Internet connection, clickon the .