Parent Lineage
Decker Peak: 10,705' ID 729' Rise
| Depth | Parent | Elevation | Saddle | Prominence | State |
| 1 | Cramer, Mount | 10,714' | 8,948' | 1,766' | ID |
| 2 | Thompson Peak | 10,761' | 8,309' | 2,452' | ID |
| 3 | Galena Peak | 11,167' | 10,425' | 742' | ID |
| 4 | "Cerro Ciento" | 11,177' | 10,571' | 606' | ID |
| 5 | "Lorenzo Peak" | 11,270' | 10,478' | 792' | ID |
| 6 | "Culmination Peak" | 11,332' | 10,311' | 1,021' | ID |
| 7 | Glassford Peak | 11,607' | 9,823' | 1,784' | ID |
| 8 | Ryan Peak | 11,719' | 8,508' | 3,211' | ID |
| 9 | Castle Peak | 11,820' | 7,804' | 4,016' | ID |
| 10 | "Goat Mountain" | 11,917' | 11,094' | 823' | ID |
| 11 | Hyndman Peak | 12,014' | 7,166' | 4,848' | ID |
| 12 | Borah Peak | 12,666' | 6,670' | 5,996' | ID |
| 13 | Francs Peak | 13,161' | 9,102' | 4,059' | WY |
| 14 | Downs Mountain | 13,356' | 11,778' | 1,578' | WY |
| 15 | Flagstone Peak | 13,445' | 12,619' | 826' | WY |
| 16 | Bastion Peak | 13,490' | 12,735' | 755' | WY |
| 17 | Gannett Peak | 13,811' | 6,732' | 7,079' | WY |
| 18 | Longs Peak | 14,259' | 11,312' | 2,947' | CO |
| 19 | Torreys Peak | 14,272' | 13,723' | 549' | CO |
| 20 | Grays Peak | 14,275' | 11,493' | 2,782' | CO |
| 21 | Lincoln, Mount | 14,293' | 10,433' | 3,860' | CO |
| 22 | Massive, Mount | 14,427' | 12,444' | 1,983' | CO |
| 23 | Elbert, Mount | 14,439' | 5,346' | 9,093' | CO |
| 24 | Whitney, Mount | 14,500' | 4,423' | 10,077' | CA |
Green = More Prominent Parent
Immediate Children:
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