These data are prepared for use by the Natural Resources Conservation Service for USDA Service Center personnel to administer agency programs.
The output ArcView Grid was converted to a TIFF 6.0 / GeoTIFF 1.0 image using the GridIO API (ESRI, Inc.), LibTiff Library (Copyright 1988-1998 Sam Leffler, 1991-1998 Silicon Graphics, Inc) and LibGeoTiff Library.
Additional information about DRGE imagery can be obtained from:
Beartooth Mapping, Inc. PO Box 2075 Red Lodge, MT 59068 Telephone: (406) 446-1007 Email: email@example.com
All DRGE's must be in the same UTM zone for MrSID Version 1.3 software to create a mosaic. In areas split by a UTM zone, DRGE's in the lesser zone are reprojected to the dominant UTM zone using ArcInfo, ERDAS Imagine or similar software
Essentially, the compressed mosaic contains three bands resulting in six colors when red, blue, and green are are used for image display. The colors represent the following: Contours - brown, Hydrography - blue, Public Land Survey System and other surveys - red, Updates - purple/magenta, Miscellaneous - black, and Vegetation - green.
Softcopy in Adobe Acrobat Portable Document File (PDF) format: <http://rmmcweb.cr.usgs.gov/public/nmpstds/drgstds.html>
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. The U.S. Department of Agriculture, nor any of its agencies are liable for misuse of the data, for damage, for transmission of viruses, or for computer contamination through the distribution of these data sets. The U.S. Department of Agriculture prohibits discrimination in its programs on the basis of race, color, national origin, sex, religion, age, disability, political beliefs, and marital or familial status. (Not all prohibited bases apply to all programs.)