| North Cascades | Level 4 (Parent) |
|          Far Northern Cascade Range | Level 5 (Sibling) |
|          Skagit Range | Level 5 (Sibling) |
|          Hozameen Range | Level 5 (Sibling) |
|          Okanogan Range | Level 5 (Sibling) |
|          Mountain Loop Area | Level 5 (Sibling) |
|          Central North Cascades | Level 5 (Sibling) |
|          Methow Mountains | Level 5 (Sibling) |
|          Glacier Peak-North Stevens Pass Area | Level 5 |
|                  Glacier Peak Massif | Level 6 (Child) |
|                  Pugh-Black | Level 6 (Child) |
|                  Dakobed Range | Level 6 (Child) |
|                  Chiwawa Ridge | Level 6 (Child) |
|                  White Mountains | Level 6 (Child) |
|                  Wenatchee Ridge | Level 6 (Child) |
|                  Wild Sky | Level 6 (Child) |
|                  Nason Ridge | Level 6 (Child) |
|          Entiat Mountains | Level 5 (Sibling) |
|          Chelan Mountains | Level 5 (Sibling) |