The second annual Yosemite Volunteer Awards ceremony took place on Saturday, September 24, 2011, in Yosemite Valley. The ceremony was conducted to recognize outstanding volunteers who have donated their time, talent, and skills to help improve the park. Yosemite National Park volunteers repaired trails, removed invasive plants, helped visitors during their visits, curated museum artifacts, educated hikers on backcountry ethics, researched wildlife, performed clerical work, and participated in search and rescue operations. https://www.nps.gov/yose/learn/news/volunteerawards11.htm