| B - Central Dry Lowlands |
| E - Central Dry Foothills |
| F - Central hill country and volcanic plateau |
| I - Central poorly - drained recent soils |
| J - Central well - drained recent soils |
| K - Central upland recent soils |
| L - Southern Lowlands |
| M - Western South Is recent soils |
| N - Eastern South Is plains |
| O - Western South Is foothills and Stewart Is |
| P - Central Mountains |
| Q - Southeastern hill country and mountains |
| R - Southern Alps |
| T - Permanent snow and ice |
