Found in soil when removing Himalaya blackberry; will start looking for burrows.
Identification source is bugguide.net
Wandering males usually seen in September and October
Found an old turret. I could see fine silk webbing lining the entrance.
I know these are turret spider homes, but I can't find the species on iNat (I don't know the genus/species for them).
Many turrets clustered on slope under roots of coast redwood. I think this is probably Antrodiaetus riversi.
Finally managed to spot some of these spiders in their turrets, and I even managed to coax a few further up by flicking a twig around the entrance. Sadly, none of the did more than inch forward to investigate.