March 14, 1993
This image is a Venus map which shows the complete altimeter topography
coverage from all 3 Magellan radar mapping cycles (24 months of operation)
in Mercator projection.  The un-mapped areas are shown in grey filled with
the Pioneer Venus altimeter map.  The areas mapped by Magellan are
color-coded, with red marking the highest areas such as Maxwell Mons and
Maat Mons, and blue marking the lowest areas.  Synthetic "shadowing" has also
been added to enhance the visibility of features.  This image has been greatly
reduced in resolution to permit easy transmission and display.  The
full-resolution imagery will be distributed on a new altimeter/radiometer
CD-ROM through the Planetary Data System and the National Space Science Data
Center later in 1993.