I believe there is also such an operation in far northeast Springfield, MO.  Neosho, MO used to have one in the limestone caves near the BNSF/KCS junction (serviced by the latter).  I've heard it said that in cold war days there was actually a tunnel carved underground all the way from near Neosho to Kansas City.  Knew the Federal Government did have a record storage operation in the Neosho caves.
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Hmm... interesting stuff.  I hadn't heard of this operation in Springfield.
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| Posted by truck-e on September 30, 2017  |  |   
I'm glad you took the time to scope this out.  From a photographic compositional standpoint, this is one of my very favorite photos.  It's a simple photo, but with heaps of crisp detail and the unifying effects of the colors (chrome yellow, electric blue and ____ (what; a kind of dull pumpkinish orange?) the functional uniqueness of the site is matched by an equally unique, artistic quality of your photo.  It deserves to be "favoriteed" twice.
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