BP3 (BP2 or higher required) | [10/18-20] BACKPACKING 55 MAMMOTH MILES FOR THE MAMMOTH CHALLENGE | Hoofer Outing Club | Open for sign up | [10/18-20] BACKPACKING 55 MAMMOTH MILES FOR THE MAMMOTH CHALLENGE - Open for sign up | Fri 10/18 2:00 pm - Sun 10/20 11:30 pm | Genevieve Bertalot Alexander Yun | 1/6 (0/3) | View [10/18-20] BACKPACKING 55 MAMMOTH MILES FOR THE MAMMOTH CHALLENGE starting October 18, 2024 02:00 pm, item 111797 |