success 8757 Open Topology 2007-09-25T19:19:46Z 2008-08-19T19:41:58Z The Open Topology project provides an open topography database and web service. This service can be used to retrieve altitude informations for each point on the world. http://www.open-topology.org/ 0 0 248658 248658 8757 2009-12-03T11:57:24Z 2009-12-03T11:57:17Z 2007-09-01T00:00:00Z 2008-03-01T00:00:00Z 2 9044 2 PHP gpl3 GNU General Public License 3