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
  
 


 
Login
  
 
 
Nickname

Password

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
  
 
 
· 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 Aldo
Geocaching Reference Number TB2ADX1

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

 
POTAM Aldo Tracking Bug ImageCurrent GOAL:
Your TOP SECRET mission (codename Aldo) is to further this Special Reconnaissance (SR) evidence through any means possible to help it reach its destination at N 37° 50.758 W 121° 56.068 (GCWBRF), the "Return to Planet of the Apes" California Command Center (formerly Devil's Spoon) in Mt. Diablo State Park.

About this item:
SGTF speculates this pin is a "long lost" 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 GCWBRF cache for further exploration have begun.
  
   
     

Operatives who have logged this TB...

  • Warrant Officer One SIDIOUS
    •  (Fri 13 Mar 2009 @ 11:04:17 GMT; 1236942257 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  DUCK432
    •  (Thu 26 Mar 2009 @ 16:50:43 GMT; 1238086243 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  CONDORMAN
    •  (Sun 29 Mar 2009 @ 11:35:50 BST; 1238322950 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  BKIP
    •  (Thu 05 May 2011 @ 19:33:28 BST; 1304620408 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  BLONDHILITES
    •  (Fri 06 May 2011 @ 22:06:48 BST; 1304716008 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  RAGFOOT
    •  (Mon 16 May 2011 @ 19:07:09 BST; 1305569229 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  THEJJDUO
    •  (Mon 13 Jun 2011 @ 9:18:23 BST; 1307953103 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  FISNJACK
    •  (Mon 13 Jun 2011 @ 16:38:50 BST; 1307979530 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  JAHOADIANDJOHN
    •  (Tue 14 Jun 2011 @ 20:31:03 BST; 1308079863 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  DICKANDALE
    •  (Thu 25 Apr 2024 @ 20:45:20 BST; 1714074320 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  FEBONIOCLAN
    •  (Wed 08 May 2024 @ 19:34:45 BST; 1715193285 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  MPARK65
    •  (Sun 19 May 2024 @ 11:16:14 BST; 1716113774 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  MAGICN3
    •  (Wed 12 Jun 2024 @ 13:09:11 BST; 1718194151 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  •  MIKE2FIND
    •  (Thu 20 Jun 2024 @ 4:43:18 BST; 1718854998 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.


Page Gen: 0.021 Seconds
   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).