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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!
The Project Blue Book Archive provides free access
to tens of thousands of official documents
related to the U.S. government's investigation
of the UFO phenomenon.
*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
Congratulations to Special Operation Forces (SOF) commandos DUCK432 and CONDORMAN for their 18 July 09 FTF during the final Operation Silverback mission! They are the top FBZ operatives and winners of SGTF's prized Project A.P.E. gold geocoin!
