Forbidden Zone Geocaches
  FBZ Missions  
  · Stone of the Lost Valley
· The Bunkers
· Mission Gorge
· Rock River Burial Mound
· Supernatural Supernova
· Little Green Men
· The Forbidden Zone
· The Monkey's Triangle
· Warlock Mine



Don't have an account yet? You can create one. As a registered user you have advantages such as the ability to display and track your Operation Silverback progress, earn points, upload images, and post comments in the forum.

  Silverback Cipher  
Silverback hunters should be familiar with the “pigpen” or masonic cipher, which is a simple substitution cipher exchanging letters for symbols based on a grid.

This cipher can be used to decrypt directions and secret codewords at FBZ geocaches!

  External Links  
  · 1: The FBI Vault
· 2: The CIA Vault
· 3: Project Blue Book
· 4: Aliens the Truth

Surveillance Images

Photos shown here may yield clues to secrets at Forbidden Zone geocache locations!

Main Page :: Slideshow ::
Most viewed :: Last uploads :: Top rated :: Last comments

Quartz Hill-93 viewsA view from the top of Quartz Hill, Stage 1A.
Top of B1-99 viewsA view very similar to what was seen in the dreams of a child in Pine Valley!
Steel Plate-102 viewsCould this be the location where the Stage Two (2) coordinates are hidden?
The Hidden Coordinates-143 viewsYes! The Stage Three (3) coordinates are revealed!
Stage Three (3) Perimeter-129 viewsA view of the main FBZ 56 ammo can.
Stage 4-122 viewsThe cryptex.
The Cryptex-127 viewsThe lucky number!
Stage 4-128 viewsCombination to unlock toolbox.
car overturned.jpg
Our Boy's Car-117 viewsOverturned along Boulder Creek Road.
tree of life.jpg
Tree of "Life?"-120 viewsAlien abduction hotspot.
cow skull.jpg
Cow Skull-133 viewsEnlightenment here!
ape 57 sign.jpg
Facility Placard-134 viewsAdhering to this sign is a key to a successful finish!
90 pictures on 8 page(s) 1

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   Operation Silverback Prize Ring SILVERBACK Prize Rings

Those who create an account on and enter mission codewords and POTAM tracking bug numbers receive points towards an Operative ranking. Operatives who achieve the rank of General (700 points) are eligible to receive an official silver Operation Silverback trackable ring from Oakcoins. Gold rings are available for those who reach the rank of Green Beret (or higher).