[OSM-talk] Contour lines
claudius.h at gmx.de
Tue Apr 13 10:14:12 BST 2010
Am 13.04.2010 10:48, Gregory:
> On 13 April 2010 01:26, Andrew Errington <a.errington at lancaster.ac.uk
> <mailto:a.errington at lancaster.ac.uk>> wrote:
> I have checked Yahoo! aerials to see the nominal area of the
> reservoir and I have chosen a particular contour line on OSM Cycle
> Map to trace along with Potlatch. This will give a
> pleasing representation of the area covered by the water.
> Hey, hold it right there.
> What makes you think the Yahoo! imagery and/or the contour lines shown
> on the Cycle Map(these contours are from SRTM data, not OSM) are more
> up to date or more accurate/precise than the existing water body drawn
> in OSM?
These thoughts set aside here's a SRTM contour tiles link: 
I suggest reading about SRTM as well  so that you can assess this
data source. For example the 90m resolution outside the USA.
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