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hack Google Maps to find your library’s (or any location’s) latitude and longitude Thursday, 4 May 2006 5:11 pm

Posted by Dongmei in API, featured IT of the week, Web 2.0, What's new at Google?!.

While playing with Google Maps and trying to incorporate Gmaps on my web site (or my blog), but no success so far, however, learned a new trick to find out a location's geocoding (you do need to know the physical address), here's how:


  1. go to Google Local (Google Maps: http://maps.google.com)
  2. enter the address you want to search in the search box
  3. click and hold on the map and move it just slightly (a few pixels if you can manage it), then release
  4. click “Link to this page” in the upper right hand corner, look in the address bar (URL), you should see &ll=xx.xxxxxx, xx.xxxxxx
  5. everything that follows &ll= is your Lat & Long (Lat, then Long separated by a comma).

e.g. for Addlestone Library: 205 Calhoun St., Charleston, SC 29424

using the steps above, you'll find its

Lat (latitude) = 32.793408

Long (longitude) = -79.940386

Cool, huh? 



1. Maxine - Friday, 5 May 2006 12:41 pm

Way cool!!

2. Frank Hamilton - Wednesday, 14 June 2006 12:29 pm


This was good information I was able to use right away. One of the lessons learned from Hurricanes Katrina and Rita was the communications problem between civilian emergency responders and military rescuers. Civilian agencies determine locations primarily from local road and street grids (e.g. street addresses, cross streets, etc.). Military rescuers like the Coast Guard determine locations from GPS and topographical map and chart coordinates. Obviously, you can’t dispatch a rescue helicopter to a street address during a disaster. Knowing the coordinates of your home or a nearby facility could be very useful in an emergency. This is why I’ve encouraged members of my Community Emergency Response Team (CERT) to find this information for themselves and identify places in their neighborhoods that could be used as helicopter landing zones. I’ve had good results from the URL shown with this message, but your link helped me find the latitude and longitude for a member who was not able to get it from the site I provided. Please contact me if you want to learn more about CERT.

3. Jay Datema - Thursday, 20 July 2006 6:29 am

I use this plugin to display a Google map on my site. Not sure if wordpress.com lets you install plugins yet.

Nice writeup, though.

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