Carter W. Roberts, Robert P. Kucks, and Patricia L. Hill
USGS Data Series 355

README.txt FILE FOR GRIDDED DATA TRANSFER DIRECTORY

These grids are presented in Geosoft Oasis montaj (proprietary software) binary format, 
with two files describing each of the grids (suffixes .grd and .grd.gi). The .gi file contains
information about the projection used by the software. This grid format can be converted
to numerous other formats using the downloadable free software offered by Geosoft at 
<http://www.geosoft.com>(look for download link). Below is the projection information
for each grid as defined in the Geosoft format.

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Projection               Lambert Conformal Conic 
Parameters:
1st standard parallel  33  0 0.000
2nd standard parallel  45  0 0.000
central meridian       -120  30 0.00
latitude of projection's origin   42  0 0.000
false easting (meters)     0.00000
false northing (meters)    0.00000
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