Western Ecology Division

Clickable map of Level III and IV Ecoregions by state: GIS files and Level IV ecoregion maps are available for all states where ecoregion subdivision is complete. Access to Level III and IV maps, GIS data, and descriptive information can be obtained by clicking on any completed state in the status map below.

Ecoregions by US State

Please note: Web pages for Level IV Ecoregions are under construction. If you do not find a link to a state that
has been completed, maps and GIS data are available on the Ecoregion FTP site and a web site will be
available shortly. Thanks for your patience!

Level III and IV Ecoregions by EPA Regions

Clickable map of Level III and IV Ecoregions by EPA Region: GIS files and Level III and IV ecoregion maps are available for EPA Administrative Regions where ecoregion subdivision is complete. Access to Level IV maps, GIS data, and descriptive information can be obtained by clicking on any EPA Administrative Region in the map below (refer to state level map for status of completed Level IV Ecoregions).

Please note: Web pages for Level IV Ecoregions are under construction. If you do not find a link to a state that
has been completed, maps and GIS data are available on the Ecoregion FTP site and a web site will be
available shortly. Thanks for your patience!

Please note: In order to ensure cross platform compatibilty (MAC v.s PC) and to provide you with downloadable and printable versions of the maps, the maps themselves are available for download in .pdf (portable document format) format. In order to be able to view and/or print the documents, you will need
Adobe Acrobat Reader, a free download that can be found at
http://www.adobe.com/products/acrobat/readstep2.html

Ecoregion Links
Ecoregion Home | Level I | Level II | Level III | Level IV | Publications | FTP Site | Links | Contacts

ORD Home | NHEERL Home

Local Navigation