Upper Midwest Environmental Sciences Center
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Hydrology and Transportation Data- created by -
USGS - National Mapping Division |
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The transportation data are 1:100,000 scale USGS quadrangle data developed by the agency's National Mapping Division. The hydrology data were created from National Mapping Division hydrology data, though they have been modified to display tributaries of the Upper Mississippi River System (UMRS). If you require these data in their original format, contact the EROS Data Center. The files are available to download via. FTP, and regional CD-ROMs are also available.

Available 1:100K
tiles
named for 1:100,000-scale USGS quadrangles