Midwest
Badlands National Park
South Dakota
Badlands' dramatic landscape of eroded buttes, pinnacles, and spires reveals millions of years of fossil-rich deposits in a striking, otherworldly terrain.
242,756 acres
1,006,809 visitors/yr
Midwest
Wind Cave National Park
South Dakota
Wind Cave contains the world's largest concentration of rare boxwork formations, while the surface protects one of the largest remaining mixed-grass prairies.
33,851 acres
709,001 visitors/yr