It's summertime!

Our hours through August 1st are 8am to 8pm.

The last tour leaves 30 minutes prior to closing.

 

In order to keep wait times at a minimum, we strongly suggest that groups of 12 or more book tour tickets online in advance for your own convenience. Larger groups without reservations may face longer wait times. 

Geode
Mine

Find It, Crack It, Keep It!
Everyone is Guaranteed to

Strike It Rich

Odds are once you enter the Cosmos Mystery Area’s famous Geode Mine lady luck will soon smile on you. Pick up a hand spade and start digging for your very own geode. Once you find a keeper take it over to our special hydraulic press to crack open your newly discovered treasure. You will be amazed at the beauty of the naturally formed crystals inside.

Staking Your Claim

  • $8 per geode mine entrance
  • $6 if purchased with Mystery House tour
  • *Ticket prices do not include tax
  • Geode Mine 01
  • Geode Mine 02
  • Geode Mine 04
  • Geode Mine 01
  • Geode Mine 02
  • Geode Mine 04

Cosmos Mystery Area

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

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