Hello Briant,
There are several ways to get USGS DEMs. Free DEMs in the SDTS version are
available at:
http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/ndcdb.html
You can download them as fast as your connection will allow.
Information on SDTS is at:
http://mcmcweb.er.usgs.gov/sdts/
Native format DEMs continue to be available for purchase via FTP or on
CD-ROM. The turn around time for data via FTP is approximately 24 hours
(usually quicker). The turn around time for DEMs on CD-ROM is about 1-1
1/2 weeks.
Another new option is the National Elevation Dataset (NED). NED is a
seamless dataset; more information can be found at:
http://gisdata.usgs.gov/
Please contact us if you have further questions or comments.
Sincerely,
Elizabeth McCartney
USGS Earth Science Information Center
1400 Independence Road
Rolla, MO 46501
Voice: 573-308-3696
Fax: 573-308-3615
Visit our new website at: http://ask.usgs.gov
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