ArcInfo Grid Export format - e00
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This format is readable by ArcInfo, ERDAS Imagine, ArcView, and 
other packages. When imported into ArcInfo and ArcView, the file 
will unpack into a directory containing all the components of the 
registered grid coverage.  The ArcGrid module in ArcInfo
and Spatial Analyst in ArcView will allow display in color shaded- 
relief.

Note that this is a Arcinfo grid format and not an ArcInfo coverage.

Note: the magnetic grid is regridded from 1 km to 2 km only for this
 format because the conversion programs wouldn't handle the 
 original file size.

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COORDINATE SYSTEM DESCRIPTION FOR ALL GRIDS

Projection:  Lambert Conformal Conic
Units: meters
Datum: NAD27
Spheroid: Clarke 1866
1st standard parallel: 33° N.
2nd standard parallel: 45° N.
Central meridian:   -100° W.
Latitude of projection's origin:  0° N.
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Description of Grid: texas_cbggrav
Cell Size =  2000.000
Data Type:  Floating Point
Number of Rows =   602
Number of Columns =   658

BOUNDARY STATISTICS
Xmin = -667000.000
Xmax =  649000.000 
Ymin =  3167000.000
Ymax =  4371000.000 

CBG grid values:
Minimum Value =  -275.125
Maximum Value =    52.109
Mean =    -75.209
Standard Deviation =   62.310
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Description of Grid: texas_isograv
Cell Size =  2000.000
Data Type:  Floating Point
Number of Rows =   602
Number of Columns =   658

BOUNDARY STATISTICS
Xmin = -667000.000
Xmax =  649000.000 
Ymin =  3167000.000
Ymax =  4371000.000 

Minimum Value =  -86.890
Maximum Value =  103.663
Mean =    -3.851
Standard Deviation =   19.823
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Description of Grid: texas_mag2km
Cell Size =  2000.000
Data Type:  Floating Point
Number of Rows =   621
Number of Columns =   673

BOUNDARY STATISTICS
Xmin = -645000.000
Xmax =  701000.000 
Ymin =  3171000.000
Ymax =  4413000.000 

MAG grid values:
Minimum Value =  -1370.639
Maximum Value =   1638.026
Mean =    -117.295
Standard Deviation =  163.737