is a derivative work of the following images: File:Level_III_ecoregions,_United_States.png licensed with Cc-pd-mark-footer, PD-USGov 2008-06-19T07:58:54Z...
Cropping: This image is a derivative work of the following images: File:AZ NM ecoregions.png licensed with Cc-zero, PD-USGov 2011-06-12T17:31:04Z Hike395 462x381...
Level III ecoregions, United States, Arkansas.png AZ NM ecoregions.png Texas ecoregions.png Level III ecoregions, United States - Oklahoma.png Upper Midwest...
