![]() NPS Photo
50 national park units have designated wilderness, totaling more than 44 million acres. The Sleeping Bear Dunes Wilderness in Michigan, designated in 2014, is the newest NPS designated wilderness area. In 2019, the Death Valley Wilderness was expanded as part of the John D. Dingell, Jr. Conservation, Management, and Recreation Act. ![]() NPS/Alicia Burton
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Last updated: July 27, 2021