Our hours for Saturday and Sunday are extended until 6pm - last tour leaves at 5:30pm.  This change is effective until August 31, and will also be in effect for Labor Day weekend.  Weekdays we will continue to close at 5pm - last tour leaves at 4:30. Additional cleaning measures are in place andd we encourage social distancing as appropriate.  We recommend reservations to minimize customer wait times.

Come by and see our new Gem Mine attraction!

Strange
History

Unbelievable Curiosity
Come Experience & Explore This

Accidental Discovery

In 1952, two college boys searched the Black Hills looking for the perfect spot to build a summer cabin. Upon their search, they stumbled into the mysterious world of the Cosmos.

The old cabin areas especially piqued their interest as the laws of logic and physics seemed to be turned upside-down. They continued to experiment and develop the demonstrations until they eventually opened their discovery to the public in 1953.

Come experience for yourself what continues to amaze and baffle visitors for 67 years.

Click to download our brochure.

Cosmos Mystery Area

24040 Cosmos Road
Rapid City, SD 57702
605-343-9802

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