Badlands
Striped spires, mixed-grass prairie and one of the world's richest fossil beds.
2 national parks in South Dakota
South Dakota has 2 national parks. Here's when each one is at its best, and the months that work for seeing several on one trip.
May, June, September and October are the best overall for South Dakota's parks. Badlands: May–Jun, Sep–Oct; Wind Cave: May–Jun, Sep–Oct.
Badlands spires, a cave under bison prairie and wild horses in North Dakota.
North Dakota · Best Jun–Sep
Colorado · Best Jul–Sep
Wyoming & Montana & Idaho · Best Jun, Sep
Wyoming · Best Jun, Sep
South Dakota has 2 national parks: Badlands National Park, Wind Cave National Park.
May, June, September and October are the best overall for South Dakota's parks. Badlands: May–Jun, Sep–Oct; Wind Cave: May–Jun, Sep–Oct.
Last reviewed October 4, 2026. Ratings are editorial. Rules and road openings change each year, so confirm on the official NPS site before you go.