In 1992, J.D. Swed became the South District Ranger for Denali National Park and Preserve stationed in Talkeetna, Alaska. Prior to coming to Alaska, J.D. had 16 years of experience as a National Park Service ranger in Yosemite, Grand Teton, Grand Canyon, and other Southwestern parks. He worked on a variety of assignments including ski patrol, mountaineering ranger, search and rescue, and emergency medical work. Later, J.D. went on to serve as chief ranger at Sequoia and Kings Canyon National Park and retired from the National Park Service in 2009 after thirty-three years of service. For more about J.D. Swed and his career with the National Park Service, see an oral history interview conducted with him conducted on the occassion of the Park Service's 100th Anniversary.