Hi, Below is a gdalinfo dump and I need to know which of the listed EPSG values I should use for: LAYER     PROJECTION         "INIT=EPSG:32615"     END Multiple EPSG codes are listed below and I am guessing that it is 32615 from AUTHORITY["EPSG","4326"]],

<br><br>Driver: GTiff/GeoTIFF<br>Size is 9102, 9268<br>Coordinate System is:<br>PROJCS["WGS 84 / UTM zone 15N",

<br>    GEOGCS["WGS 84",<br>        DATUM["WGS_1984",<br>            SPHEROID["WGS 84",6378137,298.2572235630016,<br>                AUTHORITY["EPSG","7030"]],<br>            AUTHORITY["EPSG","6326"]],

<br>        PRIMEM["Greenwich",0],<br>        UNIT["degree",0.0174532925199433],<br>        AUTHORITY["EPSG","4326"]],<br>    PROJECTION["Transverse_Mercator<div id="mb_0">"],

<br>    PARAMETER["latitude_of_origin",0],

<br>    PARAMETER["central_meridian",-93],<br>    PARAMETER["scale_factor",0.9996],<br>    PARAMETER["false_easting",500000],<br>    PARAMETER["false_northing",0],<br>    UNIT["metre",1,

<br>        AUTHORITY["EPSG","9001"]],<br>    AUTHORITY["EPSG","32615"]]<br>Origin = (778859.800149363470000,3316677.809611396900000)<br>Pixel Size = (1.000000000000000,-1.000000000000000

)<br>Metadata:<br>  AREA_OR_POINT=Area<br>  TIFFTAG_IMAGEDESCRIPTION=Space Imaging<br>  TIFFTAG_DATETIME=2002:12:17 22:21:17<br>  TIFFTAG_XRESOLUTION=1<br>  TIFFTAG_YRESOLUTION=1<br>  TIFFTAG_RESOLUTIONUNIT=1 (unitless)<br>

Corner Coordinates:<br>Upper Left  (  778859.800, 3316677.810) ( 90d 6'38.81"W, 29d56'57.43"N)<br>Lower Left  (  778859.800, 3307409.810) ( 90d 6'47.49"W, 29d51'56.70"N)<br>Upper Right (  

787961.800, 3316677.810) ( 90d 0'59.69"W, 29d56'49.87"N)<br>Lower Right (  787961.800, 3307409.810) ( 90d 1'8.66"W, 29d51'49.17"N)<br>Center      (  783410.800, 3312043.810) ( 90d 3'

53.66"W, 29d54'23.32"N)<br>Band 1 Block=9102x1 Type=UInt16, ColorInterp=Red<br>Band 2 Block=9102x1 Type=UInt16, ColorInterp=Green<br>Band 3 Block=9102x1 Type=UInt16, ColorInterp=Blue<br></div><br clear="all">

Thanks,<br>-- <br>John J. Mitchell