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Ecoregions of
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Click on the map above to choose ecoregions for North Dakota and South Dakota or follow the links listed on the left. This resource is based on the following
source:
Bryce, Sandra. James M. Omernik, David E. Pater, Michael Ulmer, Jerome Schaar, Jerry Freeouf, Rex Johnson, Pat Kuck, and Sandra H. Azevedo. 1998. Ecoregions of North Dakota and South Dakota. [Two sided color poster with map, descriptive text, summary tables, and photographs.] Reston, Virginia: U.S. Geological Survey (scale 1:1,500,000). ISBN 0-607-89384-2. It is available from the U.S. Geological Survey Distribution Center. Denver, Colorado. This resource should be cited as:Bryce, Sandra. James M. Omernik, David E. Pater, Michael Ulmer, Jerome Schaar, Jerry Freeouf, Rex Johnson, Pat Kuck, and Sandra H. Azevedo. 1998. Ecoregions of North Dakota and South Dakota. Jamestown, ND: Northern Prairie Wildlife Research Center Online. http://www.npwrc.usgs.gov/resource/habitat/ndsdeco/index.htm (Version 30NOV1998). Principal Authors:Sandra A. Bryce (Dynamac Corporation), James M. Omernik (USEPA), David E. Pater (Dynamac Corporation), Michael Ulmer, Jerome Schaar (USDA, NRCS), Jerry Freeouf (USFS), Rex Johnson (SDSU), Pat Kuck (DENR/NRSC Liason), and Sandra H. Azevedo (OAO Corporation).Collaborators and Contributors:Lewis M. Cowardin (USGS, Biological Resources Division), Michael Ell (ND State Department of Health - Division of Water Quality), Harold Kantrud (USGS, Biological Resources Division), Kenneth Lindskov (USGS), Thomas R. Loveland (USGS), David J. Ode (SD Game, Fish and Parks), J. Foster Sawyer (SDDENR, Geological Survey), David Schmidt (USDA, NRCS), Anthony Selle (USEPA), Jeffery D. Stoner (USGS), and William Stewart (SDDENR).This project was partially supported b funds from the Environmental Protection Agency's Office of Research and Development, Regional Applied Research Effort (RARE) program.
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