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	· Stone of the Lost Valley · The Bunkers · Mission Gorge · Rock River Burial Mound · Supernatural Supernova · Little Green Men · The Forbidden Zone · The Doomsday Bomb



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Journal Entries

· Reporting for Duty [2/24/25]
· Introduction [3/29/23]

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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!



		External Links

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

Viewing profile :: RockChalk (VET)

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All about RockChalk

Joined:	Jan 30, 2025
	Honorable Discharge
	Visited Project A.P.E. Mission 9 [08/19/17] Visited Project A.P.E. Mission 4 [06/04/16] Completed POTAM Ansa Mission [03/29/25] Completed POTAM Armor Mission [03/29/25] Completed POTAM Be@rbrick Mission [03/29/25] Completed POTAM Capitán Mission [03/29/25] Completed POTAM Davidson Mission [03/29/25] Completed POTAM Sandar Mission [03/29/25] Completed POTAM Scoundrel Mission [03/29/25] Completed POTAM Taylor Mission [03/29/25] Completed POTAM Troop Mission [03/29/25] Completed POTAM Warmongers Mission [03/29/25] Completed POTAM Senator Mission [03/10/25] Completed POTAM Limbo Mission [03/10/25] Completed POTAM Frenzy Mission [03/10/25] Completed POTAM Monk Mission [03/10/25] Completed POTAM Mandemus Mission [03/10/25] Completed POTAM Destiny Mission [03/10/25]
Points:	2475
Location:
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Geocaches:	None Reported
FBZ Journal:	No Journal Found
Images:	View Gallery
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	*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				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).