Zeller's Boletes are edible and they are only found in Western North America, from British Columbia, down the Pacific Northwest and south to Mexico. It is a colorful mushroom with its yellow and red stem. Like all Boletes it has a sponge underneath the cap. The ones on our property have a grayish top when young, browner with age and the sponge is yellow.
If you'd like to learn about our recent mushroom forage with David Arora, here's the link: http://mendonomasightings.blogspot.com/2011/11/mushroom-forage-with-author-david-arora.html