Weekdays, the first tour leaves at 10:00am and the last tour leaves at approximately 4:00pm. For weekdays, tours leave every hour on the hour. On weekends, tours start at 9:30 and leave on the hour and half hour with the last tour at approximately 4:20pm.

Additional cleaning measures are in place and we encourage social distancing and masks as appropriate.  

We recommend reservations be made in advance to minimize customer wait times, reservations cannot be made the same day for tours. 

Come by and see our new Gem Mine attraction!

Contact Us

24040 Cosmos Road
Rapid City, SD 57702
605-343-9802
cosmos-mystery-area-road-sign
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How to Find Us

We are located 20 minutes from Rapid City, 7 minutes from Keystone and 10 minutes from Mt Rushmore

From Rapid City

Head south on US-16
Drive Aproximatly 17 miles
Turn left onto Cosmos Rd
We will be on your left

From Keystone

Turn right onto US-16A E
Take the ramp onto US-16 E
Turn right onto Cosmos Rd
We will be on your left

From Mt Rushmore

Take SD-244 E to US-16A E
Turn right onto Cosmos Rd
We will be on your left

Cosmos Mystery Area

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

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