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Every year, nearly three and a half million people visit Yosemite National Park to enjoy the great outdoors. However, some may face the problem of being lost and injured in the rugged backcountry. At times like these, the Yosemite Search and Rescue team (YOSAR) is called into action. These rescue missions often require YOSAR to transport patients quickly. One way to extract victims from the backcountry rapidly is by helicopter. When helicopter becomes the primary means of transportation, a safe landing zone is needed. This project maps safe landing zones according to local protocols using GIS. These sites are mapped to popular climbing areas so that YOSAR can use the nearest site during rescues, thereby reducing the time needed to extract injured people from the backcountry.



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