ExpertGPS shows your GPS data on USGS topo maps, using a UTM projection. As you move around the map, ExpertGPS will retrieve map data over the Internet and display it on your map. The map server that ExpertGPS uses has topo maps for all 50 states in the US.
Read about the basic commands for interacting with all of the maps in ExpertGPS.
To show a Topo Map, clickon the .
To allow ExpertGPS to retrieve topo maps over your Internet connection, clickon the .
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