Google Maps newbie (GIS newbie), I'm looking at a solution to map an overlay (number of polygons) on-top of Google maps and wondered if using a KML file was a viable solution? Basically, I have a number of address (address data) that I will pass to our internal GIS system, the GIS system hands me back a KML file (one file with a number of different locations) and then I draw the polygon using the KML Layering options: https://developers.google.com/maps/documentation/javascript/layers Sound like a viable solution? Cheers