Trip Planner:   USA  /  South Dakota  /  Rapid City  /  Cosmos Mystery Area

Cosmos Mystery Area, Rapid City

#1 of 6 in Fun & Games in Rapid City
Entertainment Center · Mysterious Site
Explore the mysteries of Cosmos Mystery Area, where water flows uphill and you can sit on a wall. The area was discovered by chance in 1952, and has drawn curious visitors ever since. On the tour, you can participate in the demonstrations of seemingly reversed gravity. The illusions created by the natural phenomenon known as gravity hill are most dramatic inside the on-site cabin. Note that the tour requires navigating forest paths that are not wheelchair or stroller accessible. Bring comfortable shoes for the walk. Plan to visit Cosmos Mystery Area and other customer-reviewed, writer-recommended Rapid City attractions using our Rapid City holiday planner.
Create an itinerary including Cosmos Mystery Area
© OpenMapTiles © OpenStreetMap contributors

Cosmos Mystery Area reviews

Rate this attraction
TripAdvisor traveler rating
TripAdvisor traveler rating 4.0
1,002 reviews
  • Kids love this place. It is a fun place for kids of all ages. So bring your kids and enjoy the illusions. It is easy to access off Rte 16 outside of Keystone.  more »
  • I have been to one of these types of places before when in California, so I really wanted to take my friend here while in Rapid City. I had to drag her here. Turns out, she liked it the most out of.....  more »
  • Really fun as an adult and my 7 year old nephew made me take him again a week later. Is it just a trick? Maybe... But who cares! It was fun and interesting and an adventure. Plus, I like the idea of a mystery staying a mystery.
  • This was a neat place to stop. You are allowed to take pictures but they tell you not to post them on any social media. There is a steep walk up to the cabin and it is difficult to walk through the cabin as well so I don't suggest this for anyone that has difficulty walking or standing for a period of time. They do not allow wheelchairs or strollers on the tour. This is a good place for families with children old enough to walk themselves without being carried. They have a gift shop and a geode excavation area also.

Plan your trip to Rapid City

  • Get a personalized trip
    A complete day by day itinerary
    based on your preferences
  • Customize it
    Refine your trip. We'll find the
    best routes and schedules
  • Manage it
    Everything in one place.
    Everyone on the same page.