8...the answer was 8 caches. You use to have to find all eight of the Minnieville P&Gs. They all had to be archived.
You needed note the color of the caps on each of those caches. To keep this cache in play, I will provide you all the information you need and now you just need to do the math:
P&G #6 = Yellow = 1
P&G #3 = Red = 2
P&G #2 = Green = 3
P&G #1 = Orange = 4
P&G #8 = Pink = 5
P&G #4 = Blue = 6
P&G #5 = Gray = 7
P&G #7 = Purple = 8
Cache can be found at: N38 A.BCD W077 E.FGH (using the colors from the Minnieville P&Gs).
A = (P&G #1 x P&G #4) + (P&G #7 x P&G #3) - (P&G #8 - P&G #3)
B = (P&G #2 x P&G #6) + (P&G #7 - P&G #2)
C = (P&G #1 / P&G #3) + (P&G #4 - P&G #6)
D = (P&G #8 - (P&G #3 + P&G #2)) + (P&G #5 + P&G #2 - P&G #3)
E = (P&G #7 x P&G #2) + (P&G #1 - P&G #8)
F = (P&G #7 x P&G #2) / (P&G #7 - P&G #3)
G = (P&G #6 + P&G #6 + P&G #7 + P&G #4) x (P&G #8 - (P&G #2 + P&G #3))
H = (P&G #1 + P&G #2) x P&G #3 - P&G #5
There is a checker to verify your final coords. FTF gets an unactivated travel bug. Just like the Minnieville P&Gs, make sure you park legally and safely. You cannot park or stop on Minnieville Road! Please put the cache back as found. Good luck!