Established: April 3, 1940 Location: Michigan Area: 571,790 acres Visitation (2017): 28,196 Visitation Increase Since 2000: 33.7% National Park Service Official Website
Established: October 31, 1994 Location: California Area: 789,746 acres Visitation (2017): 2,853,619 Visitation Increase Since 2000: 131.3% National Park Service Official Website
