[R-sig-Geo] Is there an annotated river dataset available?

[Hans-Jörg Bibiko]

On Jan 8, 2010, at 12:20 PM, Karl Ove Hufthammer wrote:
> On Fri, 8 Jan 2010 10:11:20 +0100 Hans-Jörg Bibiko <bibiko at eva.mpg.de> 
> wrote:
>> I've a tiny question. Is there an annotated river dataset available?
>> By 'annotated' I mean that rivers are ranked by a sort of 
>> relevance/size/length or whatever. The problem is that I have an huge 
>> SpatialLines object called 'rivers' which shows ~23200 rivers  but I 
>> have to draw a map which only shows the most largest ones (let's say 
>> 100 to 150) plus one to three rivers for a country.
> 
> How about using the 'SpatialLinesLengths' function? Try get the 100 
> largest rivers, you can use

Thanks for the hint!
The absolute length can make sense of course but if I need also the largest rivers of a smaller island then this fails or it's much more tricky to handle/select.
I thought that there's a good representative collection of the world's rivers available.

Anyway, thanks a lot.

--Hans