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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.

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 << SGTF Special Operations
POTAM Devil's Tower
Geocaching Reference Number TB3CQ2N

Worth 60 Points (Create an account to enter TB tracking number and earn points!)

 
POTAM Devil's Tower Tracking Bug Image
Current GOAL:
Operatives can discover this intelligence (codename DEVIL'S TOWER) as part of the final classified Operation Silverback mission.

Its discovery is worth 60 points towards an operative's rank on this Web site!

About this item:
Its true whereabouts are unknown, but most suspect this TOP SECRET project coin is maintained in an undisclosed location in the mountains of Southern California.

Devils Tower is a monolithic igneous intrusion, which is the core of a volcano exposed from erosion. It is located in the Black Hills in Crook County, northeastern Wyoming, above the Belle Fourche River. It rises dramatically 1,267 feet above the surrounding terrain and the summit is 5,112 feet above sea level.

SGTF believes this impressive formation could be a potential landing pad for an upcoming A.P.E. close encounter fashioned of the "fifth," "sixth" or "seventh" kind. We have obtained a low-grade video still taken in 1977 of what we believe is a classified U.S. government base which existed near the bottom of the Devil's Tower. Mysteriously, if you visit this area today you will see NO trace of this facility-- at least on the terrestrial surface. It is as if the base never existed.
  
   
     

Operatives who have logged this TB...

  • Honorable Discharge CONDORMAN
    •  (Tue 23 Mar 2010 @ 9:07:53 GMT; 1269335273 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge DUCK432
    •  (Wed 24 Mar 2010 @ 11:45:26 GMT; 1269431126 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge FLAGMAN
    •  (Thu 25 Mar 2010 @ 13:36:43 GMT; 1269524203 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge THEJJDUO
    •  (Sat 27 Mar 2010 @ 17:11:51 GMT; 1269709911 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MIKE6X6
    •  (Mon 10 May 2010 @ 16:43:50 BST; 1273506230 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge BLONDHILITES
    •  (Mon 13 Jun 2011 @ 7:45:32 BST; 1307947532 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • General DILLWEED
    •  (Mon 13 Jun 2011 @ 9:22:19 BST; 1307953339 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • General FISNJACK
    •  (Mon 13 Jun 2011 @ 10:14:23 BST; 1307956463 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Green Beret BKIP
    •  (Mon 13 Jun 2011 @ 19:09:53 BST; 1307988593 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • General RAGFOOT
    •  (Mon 13 Jun 2011 @ 20:40:23 BST; 1307994023 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Green Beret STANSD
    •  (Sat 10 Mar 2012 @ 21:31:14 GMT; 1331415074 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Green Beret DICKANDALE
    •  (Mon 23 Sep 2024 @ 15:58:02 BST; 1727103482 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MAGICN3
    •  (Mon 14 Oct 2024 @ 18:45:21 BST; 1728927921 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Green Beret FEBONIOCLAN
    •  (Mon 14 Oct 2024 @ 20:00:20 BST; 1728932420 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MPARK65
    •  (Tue 15 Oct 2024 @ 9:58:50 BST; 1728982730 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Green Beret MIKE2FIND
    •  (Tue 15 Oct 2024 @ 16:17:00 BST; 1729005420 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).