Site-4 Papoose Mountain Does Exist

Supposedly S-4 is in the mountains south of Area-51, but if you ever look on a Map from a long time ago one of the military maps of the area like this one my father has from his lockheed days it has an area marked off as S-4 in the norwest center of the NTS. But sattelite photos show a lot of evidence of a base in the mountains plus facilities just south of area 51 on the edge of the mountains so its hard to say.