Highly classified detachment of Edwards AFB located at Groom Lake, Nevada. Per Luis Elizondo on the lethal-force signage: “You cross that fence and they can kill you dead.”
Related facility
S4 is allegedly ~15-20 minute drive south of Area 51 at Papoose Lake.
Connections
Groom Lake · S4 · Papoose Lake · Bob Lazar · Janet pilot · Luis Elizondo