Natureland Park
These were found very close by and may be the same species:
https://www.inaturalist.ca/observations/240690405
This was close to the base of a dying tree, in a mixed pine/fir forest in the western Sierras northwest of Tahoe around 7000'. The exterior is firm and brownish, the interior is white and peels like string cheese. The underside has pores. It's fairly dense.