Alaska-Yukon Ranges | Level 2 (Parent) |
         Brooks Range | Level 3 (Sibling) |
         Alaska Intermountain Ranges | Level 3 |
                 Seward Peninsula Ranges | Level 4 (Child) |
                 Kobuk-Koyukuk Ranges | Level 4 (Child) |
                 Nulato Hills | Level 4 (Child) |
                 Bering Sea Islands | Level 4 (Child) |
                 Kuskokwim Mountains | Level 4 (Child) |
                 Yukon-Koyukuk Ranges | Level 4 (Child) |
                 North Fairbanks Area | Level 4 (Child) |
                 East Central Alaska | Level 4 (Child) |
         Alaska Range | Level 3 (Sibling) |
         Aleutian Ranges | Level 3 (Sibling) |
         South-Central Alaska | Level 3 (Sibling) |
         Saint Elias Mountains | Level 3 (Sibling) |
         Yukon Intermountain Ranges | Level 3 (Sibling) |
         Mackenzie Mountains | Level 3 (Sibling) |