For those of you who have completed the Colossal Cobb Adventure Labs, Parts I and II, you have obtained the coordinates for this bonus cache.
N 33 AB.CDE W 084 FG.HIJ
Substitute the numbers you received in the AL journal for the letters above to obtain the location of this bonus cache. The final is a nano in a busy area. Please use stealth and only initials on the log to maximize it.
Many thanks and enjoy the search after learning about Cobb County!