Greetings, My name is Frank (Viola is my wife) and I am interested in getting information on some of the basics of GIS and where I might be able to obtain some sample programs. I am particularly interested in finding out whether I would be able to use this or some other program for 3-dimensional terrain analysis using scanned copies of early topographic maps, possibly overlaid with later versions of topographic maps to more accurately plot 17th Century farm lot boundaries and possible excavation sites of 17th Century homesteads in New York City, specifically the Bronx. Any advise and recommendations would be appreciated. Frank Licameli <[log in to unmask]> 718-824-0104