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Hundred Peaks Section Climbing Archives
Mount Islip
| Mount Williamson, Mount Islip | 29 August 1970 | Paul Lipsohn |
| Mount Lewis, Throop Peak, Mount Hawkins, Middle Hawkins, Mount Islip | 16 July 1988 | Luella Martin |
| Mount Islip, Pinyon Ridge | 18 June 1988 | Jon Sheldon |
| Mount Islip | 20 July 1988 | Kay Machen |
| Mount Islip | 12 June 1991 | George Schroedter |
| Mount Islip | 9 July 1995 | Alex Brainard |