Parent Lineage
Barrier Peak: 6,521' WA 301' Rise
| Depth | Parent | Elevation | Saddle | Prominence | State |
| 1 | Governors Ridge | 6,620' | 5,340' | 1,280' | WA |
| 2 | Tamanos Mountain | 6,790' | 6,020' | 770' | WA |
| 3 | Cowlitz Chimneys, North | 7,015' | 6,620' | 395' | WA |
| 4 | Cowlitz Chimneys, Middle | 7,421' | 7,100' | 321' | WA |
| 5 | Cowlitz Chimneys, South | 7,605' | 6,620' | 985' | WA |
| 6 | Little Tahoma Peak | 11,141' | 10,302' | 839' | WA |
| 7 | Rainier, Mount | 14,412' | 1,148' | 13,264' | WA |
| 8 | Massive, Mount | 14,427' | 12,444' | 1,983' | CO |
| 9 | Elbert, Mount | 14,438' | 5,346' | 9,092' | CO |
| 10 | Whitney, Mount | 14,494' | 4,415' | 10,079' | CA |
Green = More Prominent Parent
Immediate Children:
| # | Child | Elevation | Prominence | State |
| 1 | Buell Peak | 5,756' | 216' | WA |
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