FBZ Missions  
  · Stone of the Lost Valley
· The Bunkers
· Mission Gorge
· Rock River Burial Mound
· Supernatural Supernova
· Little Green Men
· The Forbidden Zone
· The Doomsday Bomb

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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.

  Journal Entries  
 
· Search 2026 [1/15/26]
· Agent Field Report [8/25/25]
· FBZ 54 Revisited [7/8/25]

[ See More Journals ]

  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 CIA Vault
· 2: The FBI Vault
· 3: Project Blue Book
· 4: Aliens the Truth
· 5: The Black Vault

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


trail_picture.jpg
196 viewsWilcox Toll Road Trailhead Sign
banner_grade.jpg
180 viewsEntrance To Old Banner Grade
mountains.jpg
186 viewsBanner Canyon
gold.jpg
185 viewsDer's Gold In 'Dem Hills!!
crusher.jpg
186 viewsWarlock Mine
crusher_bottom.jpg
162 viewsCrusher Mill Structure
hole.jpg
170 viewsFBZ A.P.E. 52 "Ground Zero"
ammo_can.jpg
209 viewsFBZ A.P.E. 52 Ammo Can
mine.jpg
207 viewsA Creepy Old Abandoned Mine Shaft
warlockdiscover.jpg
235 viewsFTF discovery of Warlock Mine.
hardatwork.jpg
236 viewsFinding the second part while dying on the way up.
FBZ Mission #2 - 02.jpg
162 viewsThis is a supplemental image of the same subject as the previous image, but with enhancements to the main subject made possible with advanced zoom lens technology.
91 pictures on 8 page(s) 1


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   Operation Silverback Prize Ring SILVERBACK Prize Rings

Those who create an account on fbz.geocaches.org 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 GC.com trackable ring from Oakcoins. Gold rings are available for those who reach the rank of Green Beret (or higher).