Atomic Underground Lounge Great Falls

Atomic Underground Lounge Great Falls We're a speakeasy lounge ... a mixture of an Atomic Bomb Shelter meets a classic 70's cocktail lounge meets your Grandma's basement.

If it didn't exist in 1977 you can't find it here. Classic cocktails and beers. Open Wednesday-Saturdays at 4pm.

🚀 The ATOMIC UNDERGROUND LOUNGE is a retro-cool speakeasy to hit Great Falls! It's a far-out flashback to the 70's! 😎 Pa...
06/06/2026

🚀 The ATOMIC UNDERGROUND LOUNGE is a retro-cool speakeasy to hit Great Falls! It's a far-out flashback to the 70's! 😎 Park your ride in the back, then find the secret stairs with the fallout shelter sign (it's a real thing, we swear!). Give the retina scanner a stare-down and the door will swing open like magic! ✨ And if you see a UFO beaming down on the wall, it's time to get this party started! 🎉 If not, we're closed, sorry not sorry. 😴 Oh, and don't even think about sneaking in through the Inn 😂. Use the 8th Street South entrance

06/05/2026

The Atomic Underground Lounge is open this weekend every day at 4pm!

06/05/2026
06/01/2026

The Atomic s**g carpet walls getting a blow out after a bit o rain in the lounge… no worries… all safe.. but that shimmy and shake had to be shared!

Address

17 7th Street South
Great Falls, MT
59401

Opening Hours

Wednesday 4pm - 11pm
Thursday 4pm - 11pm
Friday 4pm - 11pm
Saturday 4pm - 11pm

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