Confirmed locations of EAB are shown by the red dots. The most current map (updated monthly) is available at the Emerald Ash Borer Informationwebsite.
The following maps show species distribution, where collections have been made, and the Omernik Level III Ecoregions.
Ecoregions of the United States-Level III (EPA). This is a link to an explanation of the Omernik Level III regions.
Omernik Level III Map (PDF). This is a link to Omernik Level III map. Note: This takes some time to download!