How do I plot a bunch of points on Google Maps?

Question

I've got a list of hundreds of lat/long coordinates and I want to plot them on Google Maps. What is the easiest way to do this? The data is currently in CSV format.

Answer 1

I think the easiest way to do this is to create a KML file with all you lat/long coordinates and open them using googleEarth or google maps (http://maps.google.com/maps?q= "YOUR KML FILE URL HERE")

Some info on creating a valid KML file: http://code.google.com/apis/kml/faq.html#howtocreate

and here you can find an excel to KML converter:

http://freegeographytools.com/2007/another-excel-to-kml-converter

Hope this helps

Answer 2

Create a map from a published Google Spreadsheet. The sample spreadsheet has lat/long columns.