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 Doomsday Bomb
· The Monkey's Triangle
· Warlock Mine
  
 


 
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Journal Entries
  
 
 
· The Fool in the Rain [8/25/25]
· Reporting for Duty [2/24/25]
· Introduction [3/29/23] Normal.gif

[ More in Journal Section ]
  
 


 
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
  
 


 << SGTF Special Operations
POTAM Sisterces
Geocaching Reference Number TB2ADWX

Worth 10 Points (Create an account to enter TB tracking number and earn points!)

 
POTAM Sisterces Tracking Bug ImageCurrent GOAL:
Your TOP SECRET mission (codename Sisterces) is to further this Special Reconnaissance (SR) evidence through any means possible to help it reach its destination at S 24° 15.967 W 048° 25.299 (GCC67), the "Project A.P.E." Mission 4 Southern Bowl Command Center.

About this item:
SGTF speculates this "long lost" coin is a promotional item from the 2001 Tim Burton film, Planet of the Apes. Per SGTF's AOR under "Operation Silverback," operatives to help forward this materials item to the M-04 SB cache for further exploration have been initiated.

  
   
     

Operatives who have logged this TB...

  •  DUCK432
    •  (Wed 01 Apr 2009 @ 14:01:31 BST; 1238590891 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  CONDORMAN
    •  (Tue 14 Apr 2009 @ 18:35:31 BST; 1239730531 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  THEJJDUO
    •  (Fri 11 Nov 2016 @ 11:09:36 GMT; 1478862576 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  DICKANDALE
    •  (Sun 10 Mar 2024 @ 13:48:29 GMT; 1710078509 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  FEBONIOCLAN
    •  (Sun 12 May 2024 @ 18:07:17 BST; 1715533637 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  MPARK65
    •  (Sun 19 May 2024 @ 11:27:09 BST; 1716114429 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  MAGICN3
    •  (Wed 12 Jun 2024 @ 13:17:05 BST; 1718194625 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  MIKE2FIND
    •  (Thu 20 Jun 2024 @ 4:37:10 BST; 1718854630 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
   

 


*Disclaimer: Stories here and at FBZ caches are a combination of historical conjecture, anecdote and pure fiction. Any similarity to any event, group, or person living or dead is merely coincidental. Additionally, SGTF has utilized a variety of signs/stickers as props in the FBZ geocaching series. Labels or warnings (e.g. biohazard, radioactive, etc.) which are fictitious will display some form of the SGTF/Silverback moniker; all other warning signage encountered during this or any other FBZ adventure should be respected and observed as posted.


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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).