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  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!

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

 << SGTF Special Operations
POTAM Chimpanzee
Geocaching Reference Number TB2JRJ9

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

 
POTAM Chimpanzee Tracking Bug ImageCurrent GOAL:
Your TOP SECRET mission (codename CHIMPANZEE) 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 has obtained a critical piece of intelligence that needs special handling and care. We believe this media disk contains enemy correspondence, photographic surveillance and other important tactical data related to the 2001 Tim Burton film, Planet of the Apes. Per SGTF's AOR under Operation Silverback, operatives to help forward this classified item to the GCWBRF cache for further exploration have begun.

Please do not keep this TB if you DO mistakenly remove it from the Project APE cache. Drop it in a cache somewhere for another person to find and perhaps the mission will be completed again!
 
   
     

Operatives who have logged this TB...

  • Honorable Discharge CONDORMAN
  •  (Sat 20 Jun 2009 @ 17:14:43 BST; 1245514483 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge DUCK432
  •  (Sat 18 Jul 2009 @ 7:10:52 BST; 1247897452 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • First Lieutenant TNE
  •  (Sat 25 Jul 2009 @ 18:31:03 BST; 1248543063 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Chief Warrant Office BRONCNUT
  •  (Sun 26 Jul 2009 @ 16:47:38 BST; 1248623258 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge DICKANDALE
  •  (Thu 25 Apr 2024 @ 20:48:11 BST; 1714074491 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MAGICN3
  •  (Wed 12 Jun 2024 @ 13:07:25 BST; 1718194045 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MIKE2FIND
  •  (Tue 01 Oct 2024 @ 9:46:25 BST; 1727772385 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MPARK65
  •  (Tue 01 Oct 2024 @ 11:42:57 BST; 1727779377 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge ROCKCHALK
  •  (Sat 08 Mar 2025 @ 19:46:19 GMT; 1741463179 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge BROTHERSELDOM
  •  (Sun 16 Mar 2025 @ 21:18:23 GMT; 1742159903 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge TREKKERDMC
  •  (Mon 17 Mar 2025 @ 12:35:14 GMT; 1742214914 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge FLAGMAN
  •  (Mon 07 Jul 2025 @ 17:33:14 BST; 1751905994 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Major TURTLEX
  •  (Tue 31 Mar 2026 @ 16:45:17 BST; 1774971917 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
   

 
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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).