North Sonoran Desert Ranges | Level 4 (Parent) |
         Kofa Area | Level 5 (Sibling) |
         Harquahala Area | Level 5 (Sibling) |
         Cabeza Prieta Area | Level 5 |
                 Gila Mountains | Level 6 (Child) |
                 Sierra Tinajas Altas | Level 6 (Child) |
                 Copper Mountains | Level 6 (Child) |
                 Cabeza Prieta Mountains | Level 6 (Child) |
                 Tule Mountains | Level 6 (Child) |
                 Mohawk Mountains | Level 6 (Child) |
                 Sierra Pinta | Level 6 (Child) |
                 Granite Mountains | Level 6 (Child) |
                 Agua Dulce Mountains | Level 6 (Child) |
         Organ Pipe Area | Level 5 (Sibling) |
         Maricopa Area | Level 5 (Sibling) |
         South Phoenix Area | Level 5 (Sibling) |
         Baboquivari Area | Level 5 (Sibling) |
         La Lesna Area | Level 5 (Sibling) |
         San Luis Area | Level 5 (Sibling) |
         West Tucson-Nogales Area | Level 5 (Sibling) |