Wow!

This is very good!

Mabe the map's the one that is less acurate no?

Since the DEM data is gathered throug satelite and the map is made via
measurementes on the ground (I think) mabe that's why they don't fit
exacly.

But it's still a nice pic and a very interesting one :)


Best regards.

P.S. Not a sandbox anymore eh? ;D

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>I wouldn't expect them to match up.  I would, however, expect them to
>be skewed along the north-south direction.  It's a orthorectification
>and projection issue.  The DEM is probably projected in UTM and the
>topographic quadrangle is normally projected in state plane coordinate
>system.  The state plane coordinate system would be skewed the further
>north the map is located.  Part of the orthorectification problem is
>that they are made by two different independent departments within the
>USGS organization that don't talk to each other (and in fact there is
>a bit of a feud between them).
>  
>
    I don't know about the DEM, but I know for a fact that the Topo from 
TerraServer is UTM.  I deal with the topos and the aerial photography 
almost on a daily basis.

Tom

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