William F. Pokorny wrote:
> Perhaps not so odd. I vaguely remember something about topo data being projected
> onto a plane and DEM data following the curve of the earth. There are also a
> couple of standards for representation of DEM data which differ. Maybe someone
> who really knows will enlighten us. 

That could be it...the topo map is, at the very least, significantly
taller than the matching DEM data...and once stretched to fit, there's
some minor distortions...at the Death Valley lattitude; have no idea
what the northernmost quadrangles'll look like.

-- 
--Tim Cook
http://home.bellsouth.net/p/PWP-empyrean

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