9 April 1999

This directory should contain six (6) 1:250,000 Digital Elevation Models (DEMs) of Puerto Rico. 
They are projected into UTM Zone 20, WGS 84. The DEMs were downloaded from the USGS US Geodata website
at (http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/ndcdb.html). The file dem4.avl is an Arcview legend file. 
This file can be loaded in the directory "symbols" for those who have a version of Arcview on their machine.
 The symbols directory may be found, for example, in a path such as c:\avgis_30\arcview\symbols, although the path 
will vary depending on where Arcview was installed on a given machine. dem.avl can be loaded in Arcview under THEME...
EDIT LEGEND, for each of the DEMs. This will display the elevation data in a manner possibly more informative 
and appealing than the default legend.