Resource Class: Datasets / Subject: Biotic communities / Creator: United States. Environmental Protection Agency - University of Texas Libraries GeoData Search Results

Start Over Resource Class Datasets Subject Biotic communities Creator United States. Environmental Protection Agency

1. Omernik's Level III Ecoregions of the Continental United States, 2003

2003. United States. Environmental Protection Agency. This polygon shapefile shows Omernik's Level III ecoregions, derived from a 1:7,500,000 map created by J.M. Omernik in 1987 and from refinements of... National Atlas of the United States.

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1. Omernik's Level III Ecoregions of the Continental United States, 2003

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