I worked on the shared anchor for Big Nixon/Little Richard/Watergate yesterday. The guidebook says to use the tree 30 feet back but I found 2 old bolts near that tree separated by a space of about 12 feet. The tree is also totally dead. Both bolts were star dryvins with SMC death hangers oriented toward the climbs. Both bolts were in lodestones. I removed both of the old bolts and relocated the anchor to a spot that will service all three climbs. I only had time to get one bolt in, a few feet a way from what appears to be a bomber, slingable lodestone. On closer inspection, I am not comfortable leaving this as a one bolt anchor coupled with the slingable lodestone. I will return soon and place a second bolt.
The old upper bolt in a partially embedded lodestone next to a failed hole. Note to aspiring bolters - DON'T place bolts in lodestones unless it is a last resort. I have never had to do this (even as a last resort).

The lower bolt in another lodestone (this one is pretty well embedded but it was still totally unnecessary - plenty of good matrix all around here).

Locations of both old bolts marked by a biner w some hardware and my visor (aka the world's most disgusting tennis visor)

The dead tree showing no new vegetation and no needles. Still a large piece of wood but undoubtedly headed for the afterlife.
I should also mention that the park has a rule about using vegetation for anchors - it's not allowed.

One new bolt next to the large, slingable knob (feels solid but sounds hollow and no way to tell how deeply it is keyed in). Looks suspiciously undercut on this side.

Looking toward the top out for the routes with the big knob (right) and white patch/drill dust/bolt (left)
The haziness is smoke from the Camp Fire near Chico
