DescriptionLouisiana Level IV ecoregions.pdf Map of Level IV ecoregions in the U.S. state of Louisiana, as defined by the United States Environmental...
English Map of EPA ecoregions in Texas applies to jurisdiction: United States of America determination method: work of the federal government of the United...
work, hereby publish it under the following license: English USEPA Level IV ecoregions of Southern Coastal Plains, labelled 75, shaded green object has...
English Map produced by the USEPA depicting Louisiana's ecoregions...
DescriptionLevel IV ecoregions, Arkansas.pdf English: Poster of the ecoregions of Arkansas as defined by the USEPA Date 2004 Source Woods A.J., Foti,...
DescriptionMississippi Alluvial Plain Level IV ecoregions.pdf Map of Level IV ecoregions of the Mississippi Alluvial Plain, as defined by the United States...
DescriptionLevel IV ecoregions, Iowa and Missouri.pdf English: Poster of the ecoregions of Iowa and Missouri as defined by the USEPA Date 2002 Source United...
Bailey, 1976, "Ecoregions of the United States" (map), published by the U.S. Forest Service; and by James M. Omernik, 1987, "Ecoregions of the Coterminous...
Source https://archive.org/details/gov.gpo.fdsys.CHRG-107shrg88841 https://archive.org/download/gov.gpo.fdsys.CHRG-107shrg88841/CHRG-107shrg88841.pdf...
Geological Survey, 19801. Examples of biotic zonation at the national level are "Ecoregions of the United States" by James M. Omernik, 1986 (EPA, Corvallis...
.png){kind=link}