This cache is part of the Rock Around the Clock series. In order to find the final, you will need to find all 12 of the nearby clock caches. On the underside of the lids/caps will be the information you will need to find and unlock the final. The final is the Rock Around the Clock Cache located at N46 AB.CDE and W092 FG.HIJ.
As always, to be on the safe side, please bring your own writing utensil. There are many hunters and recreational users in this area. Please use caution and be respectful of each others right to enjoy this wonderful area.