On Tue, Apr 13, 2010 at 10:59 AM, Steve Hill <st...@nexusuk.org> wrote:

>
> I don't think the SRTM contours are accurate enough to use for tracing
> bodies of water - you need to walk the perimeter with a GPS or use aeriel
> photos.
>

They aren't. There's also another source called SRTM Water Body dataset (
http://www.kcl.ac.uk/schools/sspp/geography/research/emm/geodata/landandwater.html)
but they both are fairly inaccurate.

Regards,
Igor
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