Digital Elevation Model (DEM) Information

*** NOTE: Make sure to set the file transfer mode to binary
          if utilizing FTP to recieve data files.

RECORD DELIMITERS:
The DEM files do not contain record delimiters.  You can add
delimiters by using the following UNIX command:

dd if=inputfilename of=outputfilename ibs=4096 cbs=1024 conv=unblock

DATA FORMAT:
For specific information concerning the dataset, US GeoData users guides
are available through anonymous FTP at the following site:

nmdpow9.er.usgs.gov

Read the file "readme" in the public directory to find the directory
location for the word processing or plain text versions of the Data Users 
Guide 5, "Digital Elevation Models".  It is recommended that users download
and read these files before transferring detailed information.

To purchase a hard copy of any users guide or for further information
about Internet access to US GeoData files, call 1-800-USA-MAPS or
contact:

U.S. Geological Survey
EROS Data Center Customer Services
Sioux Falls, SD  57198
605-594-6151; FAX 605-594-6589
E-mail: custserv@edcserver1.cr.usgs.gov