200!
"How can one conceive of a one-party system in a country that has over 200 varieties of cheese?"
-Charles de Gaulle
200 is such a fascinating and significant number...
200 miles a day was the average daily distance covered by the Pony Express, the United States’ first east-west mail service.
Each dandelion flower head produces 200 seeds.
200 Japanese executives die on the golf course each year.
In Greek mythology, Typhon the Titan, “father of all monsters” had 200 fire-flashing eyes, two for each of his 100 heads.
In one of the more striking passages in the Old Testament we are told that David bought his wife with a dowry of 200 Philistine foreskins. (OK, I think we could have done without that last one...)
Your job in solving this puzzle is to provide some additional 200-based facts. The final coordinates of the cache are at
N 034° 12.ABC', W 118° 07.DEF'
which you can find by answering the following questions:
A = number of zeros in the octal representation of 200
B = finding caches hidden in all 200 months qualifies you for the ________ challenge (number of letters)
C = number of bones in the adult human body minus 200
D = Sir Henry Seagrave became the first person to drive a vehicle on land over 200 mph in the year 192_ (missing digit)
E = in the solar system, asteroid #200 is named __________ , one of the Nereids of Greek mythology (number of letters)
F = number of zeros in the binary representation of 200
You're looking for a medium-small container that can hold modest sized swag and trackables. Have fun solving and searching! Happy 200th!
(As Chris737 points out, technically parking is not allowed at GZ, but you can make the short walk in just a few minutes, or make a quick grab while your accomplice keeps the car idling! 
)
You can validate your puzzle solution with certitude.