Update 6/8: This might be a rock quarry. The gates are open (implying no secrecy), and commenter Richard C has identified it as the Jobe Rock Quarry. Although the quarry is not listed in this location on Google Maps or on its official website - in fact, it should be on the opposite side of the city, this is a theory.
Most folks in the "UFO community" don't care too much about Area 51. If it ever was an actual secret alien base, one can assume it no longer is - as the cat's been out of the bag for quite a while now. So, the search for the new Area 51 continues.
And it may end in El Paso.
TUS received a Facebook message detailing a secret underground government base, run by aliens - who take their advanced air crafts for test runs and even experiment on humans. This unsettling and gigantic "leak" apparently comes from a local Facebook page - 915 on Blast - where people can post anonymously on issues ranging from missing children to restaurant reviews. This particular revelation came from a "CIA agent" using a fake Facebook account.
915 on Blast has since removed the post, but one of their fans - Danny Mariscal - took screenshots of it and kindly shared it with TUS:
Here's a transcript (doesn't include the intro from 915 on Blast):
Hello there El Paso, Texas,
There really is a secret area in this part of El Paso, though - and it is VAST! There is virtually no information anywhere on the web about it - not even on popular UFO sites - and no street view mode is available. The roads are unnamed, to boot. But here are some screenshots from my Google Maps-led tour of this area.
On the other side of the gate:
You can browse more nameless roads and buildings in the surrounding areas.
The only thing I could find on the web about this location is a YouTube video, a few months old, featuring some young adults standing right at the gates the supposed CIA operative referred to (and I was able to find on Google Maps) - too bad they won't zoom up on the gate signs!:
Could this be an extension of Fort Bliss (located on the other side of El Paso), or maybe just some private company doing private things? President Kennedy did famously visit El Paso in 1963. Perhaps he knew about this place, too!
Just because Google has "no data" for a place, does not mean aliens are living the high life there, though. Regardless I think it goes without saying:
PLEASE DO NOT ATTEMPT TO TRESPASS AT THIS LOCATION.