About the size of a large cantaloupe!
Hericium abietis?
Couldn't get close enough to feel, but it was growing on a large downed CA bay.
Reference: Mushrooms Demystified by David Arora
Hericium abietis is an edible mushroom in the tooth fungus group. It grows on conifer stumps or logs, producing a cream white fruiting body up to 60Â centimetres (24 in) tall and 40Â centimetres (16 in) wide. It fruits from after the start of the fall rains to mid-season.
