This post, while technically inaccurate, is an excellent opinion to have. Stick with this and you will not be poisoned by a death cap mushroom.That is a Death Cap mushroom, responsible for many recent poisonings in California and used by a mass murderer in Australia to wipe out half her family. Note the lack of colour in the gills, if you have a sensitive nose they also smell a little "off".
Death cap mushrooms have a ring of tissue around the stem, often looking like a skirt, and a cup like structure at the base.
This mushroom has neither. Sometimes the ring can be rubbed off and the cup buried in the substrate. That is not the case for the mushroom in this photo, but only I would know that from excavating the wood chips underneath and also the examination of other specimens at the same site.
Same specimen, photo illustrating the lack of a ring and volva. The entire mass clutched in my hand is the base and substrate of the mushroom. Death caps almost never grow on wood chips. Not as photogenic as the first.
I should make a spore print. The spores may be pink. A likely ID is Pluteus petasatus, but I quite literally would not stake my life on it.