Indiana Level 4 Ecoregions Map
| er54a - Illinois/Indiana Prairies |
| er54b - Chicago Lake Plain |
| er54c - Kankakee Marsh |
| er54d - Sand Area |
| er54f - Valparaiso-Wheaton Morainal Complex |
| er55a - Clayey High Lime Till Plains |
| er55b - Loamy High Lime Till Plains |
| er55d - Pre-Wisconsinan Drift Plains |
| er55f - Whitewater Interlobate Area |
| er56a - Lake Country |
| er56b - Elkhart Till Plains |
| er56c - Middle Tippecanoe Plains |
| er56d - Michigan Lake Plain |
| er57a - Maumee Lake Plains |
| er71a - Crawford-Mammoth Cave Uplands |
| er71b - Mitchell Plain |
| er71c - Knobs-Norman Upland |
| er71d - Outer Bluegrass |
| er72a - Wabash-Ohio Bottomlands |
| er72b - Glaciated Wabash Lowlands | er72b - Green River-Southern Wabash Lowlands |
| er72h - Caseyville Hills | er72h - Wabash River Bluffs and Low Hills |
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 Indiana gardenders.
