Tennessee Level 4 Ecoregions Map
| er65a - Blackland Prairie |
| er65b - Flatwoods/Blackland Prairie Margins |
| er65e - Northern Hilly Gulf Coastal Plain |
| er65i - Fall Line Hills |
| er65j - Transition Hills |
| er66d - Southern Crystalline Ridges and Mountains |
| er66e - Southern Sedimentary Ridges |
| er66f - Limestone Valleys and Coves |
| er66g - Southern Metasedimentary Mountains |
| er66i - High Mountains |
| er66j - Broad Basins |
| er66k - Amphibolite Mountains |
| er67f - Southern Limestone/Dolomite Valleys and Low Rolling Hills |
| er67g - Southern Shale Valleys |
| er67h - Southern Sandstone Ridges |
| er67i - Southern Dissected Ridges and Knobs |
| er68a - Cumberland Plateau |
| er68b - Sequatchie Valley |
| er68c - Plateau Escarpment |
| er68d - Southern Table Plateaus | er68d - Dissected Appalachian Plateau |
| er69e - Cumberland Mountain Thrust Block | er69e - Western Pennyroyal Karst Plain |
| er71f - Western Highland Rim | er71f - Eastern Highland Rim |
| er71h - Outer Nashville Basin | er71h - Inner Nashville Basin |
| er73a - Northern Holocene Meander Belts | er73a - Northern Pleistocene Valley Trains |
| er73d - Northern Backswamps | er73d - Bluff Hills |
| er74b - Loess Plains |
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 Tennessee gardenders.
