The cache is a small lock'n'lock hidden on an unnamed peak west of Larkspur. I bushwhacked up, which is not recommended, because the area is choked with broom and thorny vines. The Blue Tarp Track starts out nicely, but about half way up it becomes *very* overgrown. Still, it's better than bushwhacking because there is a trail there. There is a route up to the pipeline from the northwest which might work out nicely to put you in the general vicinity. There is a great view at cache site; bring your camera!
Enjoy!