USAPhotoMaps downloads USGS aerial photo and topology map data from Microsoft's free TerraServer Web site, saves it on your hard drive, and creates maps with GPS accuracy. You can scroll and zoom, see latitude/longitude, USGS Landmarks, TIGER/Line streets, elevation and contour lines, add waypoints, routes, and text, go to any address, populated place, USGS landmark, or latitude/longitude in the U.S.A, transfer waypoints, tracks, and routes to and from most GPS receivers, see your GPS location etc.Note: USAPhotoMaps always pops up a beg screen when you exit the program, which can be dismissed with a button click. If you are allergic to this sort of behaviour, don't bother downloading it! You have been warned. Download the installer and install to the default folder. Copy all files (except uninstall.exe) to a folder of your choice. Finally, uninstall the application. Launch the program by double-clicking on USAPhotoMaps.exe.