Download topographic contour lines for free 25m world

 In this article we'll see how to get topographic contour line with 25 m interval for free. using the OpenLayers WebClient.

for more information and tricks click on the video bellow

     

Download SRTM based Contour Lines    

License	Open Database License
Format	Shape
Size	1*1°
Intervall	25 Meter
Processing	Technology - SRTM Contours
Data Sources	SRTM data by the USGS
	Enhanced datasets for mountain areas by Panorama Viewfinders, Stand: June 2012
	Radarsat Antarctic Mapping Project (Antarctica)
	National Elevation Dataset (NED) - Alaska
	Canadian Digital Elevation Dataset (CDED) - > 60° N