Image Name                   :  elev96us
Boundaries                   :  Lat 24N to 53N ; Lon 230E to 294E
Color Scale, Upper (Red)     :  2500 meters and higher
Color Scale, Lower (Blue)    :     0 meters and lower 
Data Max value               :  3971 meters  
Data Min value               :   -85 meters
Illuminated from the         :  East

  This is an image generated from 2'x2' orthometric (above mean sea level)
heights covering the conterminous United States and surrounding areas.
Interesting features to note about this image are:

  The Rocky mountains stand out nicely in green/orange/red, showing both
their height and their high-frequency nature.  The front range is clearly
delineated as a sharp red-to-green transition running North-South in the
Colorado region.

  Significant portions of the Eastern seaboard are low elevation areas
and show up as a light/deep blue.  These areas are just above sea level in
elevation. As such, while it looks like Florida and the East coast are
under water, they are merely shaded a very deep blue because of the color
scale.

  Erosional paths of current rivers are evident, stretching from
the North, in Canada, down to the Missisippi delta.

  The long, nearly flat area encompassing the inland portion of
California is a combination of the Sacramento Valley (North) and
San Joaquin Valley (South).  

  Negative elevations (land areas that are below sea level) are found in
the Salton Sea and Death Valley areas of South and Southeast California.


das/dgm 10/18/96