This is the third cache I've placed at this general location.
Not many parking lots have their own Wikipedia page, but this one does. It is described as "a scenic turnout in San Mateo County along State Route 35 between Kings Mountain and State Route 84". It's a convenient place to park if you're planning a hike at El Corte Madera Creek Open Space Reserve.
The previous cache I had here was in a muggle-prone area; this one is further away from the cars and closer to the entry point to the lot, so hopefully it works better as a trail parking marker. You're looking for a camo-taped pill bottle; there's room for small trade items. Because this lot gets lots of use, please try to be careful not to attact attention from random passers-by. Happy caching.