Looking for Coarser DEM Data than CGIAR SRTM

[Seldom]

I'm trying to generate a hillshade map of the continental US.  The grid could be about somewhere between 6" (finest) and 30" (coarsest).  The coarsest I can find on GM is the SRTM is 3".  I could live with that, but the download is taking forever.  (An hour with 0% progress.)

[ddabcd277]

You can try ACE2. It is available at 3, 9, 30 seconds and 5 minutes.

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http://tethys.eaprs.cse.dmu.ac.uk/ACE2/

It is free but need registration.

or GTOPO 30:

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http://eros.usgs.gov/#/Find_Data/Products_and_Data_Available/gtopo30_info

Cheers

[jbensman]

Whart do you mean by hillshade?

You have not figured out how to add DEM data to a map have you?

[Seldom]

Whart do you mean by hillshade?

You have not figured out how to add DEM data to a map have you?

Fraid not about the DEMs.  I'm trying to generate a georeferenced grayscale shaded maps showing coarse relief of the USA.  It would be a handy way to know where the mountains are without having to generate topos.

[Seldom]

You can try ACE2. It is available at 3, 9, 30 seconds and 5 minutes.

Code Select Expand

http://tethys.eaprs.cse.dmu.ac.uk/ACE2/

It is free but need registration.

or GTOPO 30:

Code Select Expand

http://eros.usgs.gov/#/Find_Data/Products_and_Data_Available/gtopo30_info

Cheers

Thanks, ddabcd277, the eros data was just what I was looking for.  A perfect fit for my hydrography.

[ddabcd277]

You mean by .typ file? Relief by .typ? Forget about that! Beter use contours. Generating such .typ decrease dramatticaly the drawing speed. Not useful.

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Thanks, ddabcd277, the eros data was just what I was looking for.  A perfect fit for my hydrography.
Glad it worked  

Cheers,

[Seldom]

I think jbensman was referring to how Garmin adds DEM hillshade data to their topo maps.  AFAIK that process is still a mystery to us hobby mappers.