Our Story

Strange history, unbelievable curiosity.

An 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.

More about the Cosmos

The Cosmos of the Black Hills was discovered by two college boys looking for a place to build a summer cabin. When they entered this area, they discovered something was off. The boys decided to camp out while investigating the odd phenomena. They came to a conclusion that there was something of interest to the general public, so they began to fix the cabin to make it safe, resulting in the demonstrations you will soon see!

Hours & Location

We can get very busy during the summer. We strongly suggest that you purchase tickets online in advance to ensure you get a spot on one of our tours.

April & October - 9:30AM-5:00PM (tours every hour from 10:00am-4:00pm)
May & September - 9:30AM-5:00PM (tours vary daily from 10AM-4PM)
June, July & August - 9:00AM - 5:00PM (tours every ten minutes from 9:30AM-5:00PM)
Holidays (Memorial day, 4th of July, Labor Day) - 9:00AM-5:00PM (tours every five-ten minutes from 9:30AM-5:00PM)