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 Scarecrow
Geocaching Reference Number TB9FY1V

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

 
POTAM Scarecrow Tracking Bug ImageCurrent GOAL:
Your TOP SECRET mission (codename SCARECROW) is to further this Special Reconnaissance (SR) evidence through any means possible to help it reach its destination at (GC210M6), The Forbidden Zone FBZ A.P.E. 57 in San Diego, CA. U.S.A.

About this item:
SGTF speculates this "long lost" artwork card is base card 75 in the Archive P2 Inkworks promotional set from 1999. Per SGTF's AOR under Operation Silverback, operatives to help forward this materials item to the GC210M6 cache for further exploration have begun.
  
   
     

Operatives who have logged this TB...

  •  FLAGMAN
    •  (Thu 01 Jun 2023 @ 20:45:17 BST; 1685648717 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  STANSD
    •  (Wed 28 Jun 2023 @ 13:08:51 BST; 1687954131 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  DICKANDALE
    •  (Thu 07 Mar 2024 @ 18:37:00 GMT; 1709836620 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  MPARK65
    •  (Mon 17 Jun 2024 @ 9:29:00 BST; 1718612940 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  MAGICN3
    •  (Mon 17 Jun 2024 @ 12:45:29 BST; 1718624729 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  MIKE2FIND
    •  (Thu 20 Jun 2024 @ 4:46:55 BST; 1718855215 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  FEBONIOCLAN
    •  (Fri 21 Jun 2024 @ 15:01:42 BST; 1718978502 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).