OpenStreetMap Mapping Party - Hamilton ON September 19, 2008

OpenStreetMap.org is like wikipedia but for maps, you can add anything you like and help make a free map of the world.

Mapping parties are community events targeted at getting a specific area mapped in a day or a weekend. You come along, are loaned a GPS unit and shown how to use it (it's easy!) and you go out mapping an area of your choosing. Then you come back and are shown how to get that data in to the map.

Official Website: http://wiki.openstreetmap.org/index.php/Hamilton_Mapping_Party