I spotted these guys today on a trail run in the East Bay, CA. It just rained so there were lots mushrooms and amphibians out! I pointed these mushrooms out to my son as cool organisms that are not to be eaten.
I saw all of the death cap features I've read about / been warned about, except for a volva. But maybe there's one buried under the leaves. These were growing under what might be oak trees.
I'm aware the Western Destroying Angel also grows in this area, and might be more likely to appear at this time of year?
Sure looks like one to me, though it is paler than they usually are (edit: colour variation is perfectly normal for death caps though). It certainly isn't any edible species that I know of.
That being said mushrooms are somewhat local and I live on the other side of the world so take this identification with a grain of salt.