Raven Rock Mountain Complex Show options Hide options Additional options Avoid highways Avoid tolls KM Miles Get Directions Print Directions Also known as “Site R.”, “The Rock”, NMCC-R, ANMCC , AJCC, “Backup Pentagon”, “Site RT” ;or simply as”underground Pentagon”. More info here. Name: Raven Rock Mountain Complex Lat, Long: 39.734154, -77.419952 Location: Pennsylvania, USA January 22, 2014 Weird Military No Comment Military objects Pingualuit Impact Crater Blackwater Training Facility Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment * * Yes, add me to your mailing list. Notify me of follow-up comments by email. Notify me of new posts by email.