The Confirmed Locations of the Emerald Ash Borer
Confirmed locations of EAB are shown by the red dots. The most current map (updated monthly) is available at the Emerald Ash Borer Informationwebsite.
Ash Tree Species Distribution Maps
To link to map source, click Reference Links | Tree Species Range Maps
Ash Tree Distribution / Collected Sites / Omernik Level III Ecoregion Maps
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!