ExpertGPS handles all your mapping and data-conversion jobs. You'll be able to convert any GPS, GIS, or CAD data to or from GPX, Google Earth KML or KMZ, Excel CSV or TXT, SHP shapefiles, or AutoCAD DXF drawings in two clicks. You can reproject data in any geographic format (lat-lon, UTM, US State Plane) and change datums instantly. With ExpertGPS, you'll be able to calculate acreage, measure distance, elevation and grade.
ExpertGPS automatically downloads USGS topo maps and aerial photos for any location in the United States.
ExpertGPS downloads aerial photos and topo maps for any location in the US, saving the maps to your hard drive. Disconnect your laptop and head out on a trip, and all of your data is available. ExpertGPS keeps track of which maps need to be retrieved from the Internet, so you can quickly define an area to map and let ExpertGPS gather the data later.
Whether you're discovering a new trail or scouting a 400 acre parcel, ExpertGPS gives you the maps and tools you need to get the job done. No other software makes it this easy to add your own data to maps and aerial photos.
Home Page -http://expertgps.com/