I cannot tell what this is, nor can I find any information about it. From what I can see, it looks quite a bit like the entrance to the Cheyenne Mountain Complex in Colorado, minus all the fencing. But given its location within White Sands, it would make sense to me if this were a similar facility.
Bunker of sorts within White Sands Missile Range, NM
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© Bing Maps
By emilykind_ @ 2019-01-24 22:30:51
Entrance to the bunker