This cache is part of the WERDAVE 80 for 80 series celebrating WERDAVE's birthday and his extensive contributions to cache hiding, especially on the trails and in the parks around the Santa Clara Valley.
The cache is hidden on the Priest Rock Trail in Sierra Azul OSP. I think these trail offshoots with the helicopter landing pads at the ends are one of the most interesting things about Sierra Azul. They have amazing views and they're reassuring for fire and emergency rescue purposes, but I do wonder why there are so many of them!
You're looking for an ammo can about 40' from the edge of the clearing. From the waypoint, look for a row of fenceposts and head that way. The clear "path" will take you to a row of 4 visible fenceposts, still connected with old barbed wire. 3 of them are still more or less upright, and the other one is leaning over. From "behind" the fence (relative to the direction you came from,) count 3 posts from the left and check the base. There's almost no camo except a rock to secure the cache.
The extra difficulty is for the possibility that this area might become more overgrown. As of the time of publication, the area was clear and open.
This part of the trail is roughly equidistant from the Limekiln and Priest Rock trailheads on Alma Bridge Road. Either way, it's a roughly 7- 8 mile round trip with significant elevation gain.
Sierra Azul OSP is open one-half hour before sunrise until one-half hour after sunset. Happy hunting!