Parent Lineage
Jefferson, Mount: 10,206' ID, MT 3,377' Rise
| Depth | Parent | Elevation | Saddle | Prominence | State |
| 1 | Black Mountain | 10,243' | 9,331' | 912' | ID, MT |
| 2 | "North Targhee Peak" | 10,435' | 9,753' | 682' | ID, MT |
| 3 | "Sheep Point" | 10,608' | 6,940' | 3,668' | MT |
| 4 | 10765 | 10,765' | 10,350' | 415' | WY |
| 5 | Jay Benchmark | 10,937' | 10,324' | 613' | WY |
| 6 | 11011 | 11,011' | 10,055' | 956' | WY |
| 7 | 11075 | 11,075' | 10,624' | 451' | WY |
| 8 | 11734 | 11,734' | 10,849' | 885' | WY |
| 9 | Thorofare Mountain | 12,057' | 11,002' | 1,055' | WY |
| 10 | Younts Peak | 12,160' | 9,914' | 2,246' | WY |
| 11 | Wapiti Ridge | 12,177' | 9,647' | 2,530' | WY |
| 12 | "Uranus" | 12,481' | 11,607' | 874' | WY |
| 13 | Peak Benchmark | 12,530' | 11,514' | 1,016' | WY |
| 14 | "Jupiter" | 12,645' | 11,207' | 1,438' | WY |
| 15 | Francs Peak | 13,161' | 9,102' | 4,059' | WY |
| 16 | Downs Mountain | 13,356' | 11,778' | 1,578' | WY |
| 17 | Flagstone Peak | 13,445' | 12,619' | 826' | WY |
| 18 | Bastion Peak | 13,490' | 12,735' | 755' | WY |
| 19 | Gannett Peak | 13,811' | 6,732' | 7,079' | WY |
| 20 | Longs Peak | 14,259' | 11,312' | 2,947' | CO |
| 21 | Torreys Peak | 14,272' | 13,723' | 549' | CO |
| 22 | Grays Peak | 14,275' | 11,493' | 2,782' | CO |
| 23 | Lincoln, Mount | 14,293' | 10,433' | 3,860' | CO |
| 24 | Massive, Mount | 14,427' | 12,444' | 1,983' | CO |
| 25 | Elbert, Mount | 14,439' | 5,346' | 9,093' | CO |
| 26 | Whitney, Mount | 14,500' | 4,423' | 10,077' | CA |
Green = More Prominent Parent
Immediate Children:
| # | Child | Elevation | Prominence | State |
| 1 | "Pup Peak" | 8,580' | 1,440' | ID, MT |
| 2 | Reas Peak | 9,380' | 520' | ID, MT |
| 3 | Taylor Mountain | 9,868' | 1,895' | ID, MT |
| 4 | 9881 | 9,881' | 306' | ID, MT |
| 5 | Baldy Mountain | 9,891' | 2,356' | MT |
| 6 | Red Rock Mountain | 9,500' | 160' | ID, MT |
| 7 | Nemesis Mountain | 9,449' | 469' | MT |
| 8 | 9323 | 9,323' | 343' | MT |
| 9 | Sawtell Peak | 9,907' | 872' | ID |
| 10 | 9584 | 9,584' | 644' | ID |
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