Geotiff sources?

[mash]

Hi, I'm looking for sources for GeoTiff files.
In the past I used the rather crude http://seamless.usgs.gov/
That has been switch over to the much easier to use
http://viewer.nationalmap.gov/viewer/

The problem is I can't seem to change the output format when downloading anymore.
The only option is ArcGrid.

Does anyone know of any Free Geotiff sources?
thanks,
Mash

[jo]

Hi Mash,

I can't help with the GeoTIFFs but the Geog heightfield load node which is new in TG3 can load ArcGRID files:

http://www.planetside.co.uk/wiki/index.php?title=Geog_Heightfield_Load

Regards,

Jo

[Zairyn Arsyn]

cool. this is good, i was having the same issue with geotiff format conversion and the national map viewer.

[mash]

Duh, I didn't even think to try the ArcGrid format with TG3.
I just did and it works quite well in TG3.
Keep in mind even though in the National map viewer you can define a box for the area to download it still downloads the entire
1;24000 topo grid area.

[Oshyan]

TG3 can load all the major DEM sources that the National Map Viewer lets you download.

http://terragen3.com/focus-on-features-enhanced-dem-support/

- Oshyan