insulated in sandgate! Mystery Cache
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***THE CACHE IS NOT AT THE COORDS LISTED BUT YOU MUST SOLVE THIS FIELD PUZZLE WITH INFORMATION OBSERVED AT THIS LOCATION DURING DAYTIME ONLY***
CACHE IS LOCATED AT N 43 08.ABC W 073 11.9D5
Subtract 39 from the number on the mailbox for ABC
Add number of straight pipes on the roof of the subject building to 4 for D
***FTF!! - Congratulations to Richard E for FTF!!***
At this location on another back road of Sandgate, you will observe a home made with Ferrocement. Ferrocement has been described as "a thin composite made with a cement-based mortar matrix reinforced with closely spaced layers of small diameter wire mesh." Ferrocement was first discovered in 1848 in France by Joseph Lambot and patented by him in 1852. This predates reinforced concrete by 25-30 years.
Simply put, reinforced concrete, including shotcrete, contains cement, sand and an aggregate of stone, along with reinforcing steel usually in the form of rebar and sometimes heavy duty wire mesh, i.e. 6x6x6x6 or 6x6x10x10. The aggregate in concrete can be as small as 1/4" and gets larger from there depending on mix design and application. Ferrocement never uses aggregate but is composed of sand, Portland cement and wire mesh.
Fantastic Ferrocement by Peter Harris, 2007
* This was once the location of a virtual cache GCNAMJ archived. Thanks to sabby for the alert!!*
Additional Hints
(Decrypt)
Fgbar vafhyngrq
Treasures
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