I found a virtual cache form another site at Big Brutus in April of 2012 and decided this would be a fun one everyone! The coordinates are not for the solution to the puzzle. They are for the bucket, just to get you there, although once you get within a half mile or so you *will* know where to go!
This cache will cost you a little money, and you might want to also check on the schedule for the time of year you go. Current pricing and hours of operation can be found at BigBrutus.org, but as of publishing this cache they are:
Adults $8.00
Senior Citizen $7.50
Children 6-12 $5.00
Children 5 & under FREE
In the Visitor Center you need to pick up a self-guided tour sheet, then you will need to begin the tour. If all you care about is the find, you can complete the tour in less than 10 minutes, but I encourage to spend some extra time. Proceed on the self guided tour to item #13 'BREAK ROOM' and make note of the number three oiler. It is on a plaque on the wall.
To verify that you have actually visited this cache and claim credit for a find, use the oilers name as your passowrd on your found log.
I hope you enjoy visiting this amazing place as much as I did!