Maine Level 4 Ecoregions Map
| er58j - Upper Montane/Alpine Zone |
| er58m - Quebec/New England Boundary Mountains |
| er58p - White Mountains/Blue Mountains |
| er58r - Sebago-Ossipee Hills and Plains |
| er58s - Western Maine Foothills |
| er58t - Upper St. John Wet Flats |
| er58u - Moosehead-Churchill Lakes |
| er58v - St. John Uplands |
| er58w - International Boundary Plateau |
| er59f - Gulf of Maine Coastal Lowland |
| er59h - Gulf of Maine Coastal Plain |
| er82a - Aroostook Lowlands |
| er82b - Aroostook Hills |
| er82c - Eastern Maine-Southern New Brunswick Plains |
| er82d - Central Foothills |
| er82e - Central Maine Embayment |
| er82f - Midcoast |
| er82g - Downeast Coast |
| er82h - Penobscot Lowlands |
Based on Ecoregions developed by the EPA this map describe areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources, as well as similarity of climate that can assist Maine gardenders.
