There are numerous places like this all over the country. The one in the video looks a lot like the ones in the ozarks. There are whole companies that are located under the mountains. Lots and lots of long term storage. You can actually drive your car through a lot of them....they're public roads. It's like a huge industrial complex underground. There are videos online of people driving through them and filming...which is perfectly legal. A co-worker of mine lived near the ones in Arkansas...he's been in them and says they are HUGE....miles and miles of warehouses and business...all inside the mountain.

Interesting though...

About the 8 minute mark here...





Does the 4:43 mark on this one look familar....?