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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.

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3 Answers 3

up vote 8 down vote accepted

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

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This is a 10 second solution to put the points on Google Map - you will need either excel or CSV data which you just copy/paste here: http://www.hamstermap.com and then choose Quick Map.

There is also a more complicated map on the website with fancy markers but you will probably need just the quick map.

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