The center is known as Iron Mountain and easily the most notable thing about it is that it’s located 220 feet underground in a former limestone ... were being kept in a cave was “creepy ...

As you ride in a golf cart into the mouth of the Iron Mountain limestone mine, the temperature change is immediately noticeable. The natural climate control provided by the rough-hewn stone walls ...

Making sure those stems are indiscernible from the original recordings is just one of the responsibilities entrusted to Zinn and his co-workers with Iron Mountain. Inside a former limestone mine ...