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
Project A.P.E. 51 Geocoin
Geocaching Reference Number TB15QBC

Worth 20 Points (Create an account to enter TB tracking number and earn points!)

 
Project A.P.E. 51 Geocoin Tracking Bug ImageCurrent GOAL:
This Project A.P.E. coin does not physically circulate but photographic proof of its existence can be discovered at a Simian Guerrilla Task Force's Forbidden Zone (FBZ) A.P.E. 51 Top Secret Geocache (TSG).

About this item:
Its true whereabouts are unknown, but most believe this highly coveted Project A.P.E. geocoin is stored under maximum security in an underground, fortified bullion depository east of SGTF headquarters.
  
   
     

Operatives who have logged this TB...

  •  DUCK432
    •  (Mon 09 Mar 2009 @ 16:55:23 GMT; 1236617723 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  CONDORMAN
    •  (Tue 10 Mar 2009 @ 20:00:42 GMT; 1236715242 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  LULU499
    •  (Wed 22 Jul 2009 @ 20:42:21 BST; 1248291741 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  THEJJDUO
    •  (Mon 21 Dec 2009 @ 18:29:34 GMT; 1261420174 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  MIKE6X6
    •  (Fri 30 Apr 2010 @ 16:27:44 BST; 1272641264 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  RAGFOOT
    •  (Thu 17 Mar 2011 @ 23:33:14 GMT; 1300404794 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  BLONDHILITES
    •  (Thu 05 May 2011 @ 9:57:23 BST; 1304585843 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  BKIP
    •  (Tue 31 May 2011 @ 17:06:22 BST; 1306857982 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  FISNJACK
    •  (Mon 06 Jun 2011 @ 17:44:17 BST; 1307378657 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  DILLWEED
    •  (Mon 06 Jun 2011 @ 21:19:53 BST; 1307391593 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  JAHOADIANDJOHN
    •  (Tue 14 Jun 2011 @ 20:01:56 BST; 1308078116 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  OESTEADO
    •  (Sat 12 Mar 2016 @ 21:15:55 GMT; 1457817355 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  FLAGMAN
    •  (Thu 01 Jun 2023 @ 22:14:16 BST; 1685654056 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  DICKANDALE
    •  (Sat 09 Mar 2024 @ 18:27:18 GMT; 1710008838 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  MAGICN3
    •  (Fri 20 Sep 2024 @ 18:10:44 BST; 1726852244 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  MPARK65
    •  (Fri 20 Sep 2024 @ 19:29:30 BST; 1726856970 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  FEBONIOCLAN
    •  (Sun 22 Sep 2024 @ 10:53:21 BST; 1726998801 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  MIKE2FIND
    •  (Wed 25 Sep 2024 @ 10:46:07 BST; 1727257567 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).