North Dakota Water Science Center
Open-file reports provide the public with ready access to preliminary results of geologic and hydrologic studies and to most geohydrologic data. They include data reports, progress reports, preliminary reports, and annual project summaries.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://nd.water.usgs.gov/pubs/ofr/what.html
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Page Last Modified: Wednesday, 19-Oct-2005 11:26:15 EDT
