Hi Paula, I've just started playing around with GMAP myself. The SAS Institute actually have anumber of example programs and datasets available which you can download and use, so that would be a good port of call for you. The other thing to note is that you'll probably need to use Proc GProject as well, which converts longitude/latitude data into X/Y coordinates for plotting on the screen.

Check this out:- http://ftp.sas.com/techsup/download/sample/graph/gmap-examples-list.html

and this http://support.sas.com/techsup/unotes/V6/E/E689.html

and finally, this:- http://support.sas.com/rnd/datavisualization/mapsonline/html/downloads.html

Enjoy. Chris W75

Paula Sims wrote: > Hello all, > I am new to PROC GMAP and wanted to find ways to use this "new toy" at > work. One of the projects I want to do is to find the location of the > staff (based on their zip codes) and produce a map that would show > concentrations of staff around the location of the corporate > headquarters. From what I've begun to read, this is not a simple or > necessarily accurate distribution. If also, I would also like to add > distance rings from headquarters out. > > Can anyone guide me to any previously written papers that show this type > of map? > > Thanks > > Paula