USGS Open-File Report 99-404
Digital aeromagnetic data from the Sandoval-Santa Fe, Belen, and Cochiti
airborne surveys, covering areas in Rio Arriba, Sandoval, Santa Fe,
Soccorro, and Valencia Counties, New Mexico

This CD-ROM contains digital data files and descriptions of aeromagnetic
data collected during three airborne geophysical surveys in New Mexico
during 1997-1998.  The Sandoval-Santa Fe survey covers the southern
Espanola basin and northern Albuquerque basins.  The Belen survey covers
the southern Albuquerque basin from just north of Belen to Bernardo on the
south.  The Cochiti survey primarily covers Cochiti Pueblo lands, west
of Santa Fe.  The digital files include grids, images, ARC/INFO and
ARC/VIEW compatible files, and flight-line data. 

The data files and information about their formats and use are 
organized into three directories plus the PDF report, as follows:  
files pertaining to the gridded data are contained in the "grids" 
folder; files pertaining to the flight-line data are contained 
in the "linedata" folder; and files pertaining to the color shaded-relief 
images are contained in the "images" folder.  In each folder, ASCII files 
with the extension .txt describe the format and contents of the data files.  
Read the .txt files before using the data files. To begin, read the file 
"of99-404.pdf."  The report lists and describes the files available in the 
other folders.