I was hiking with friends in August 2013 in Yosemite National Park. We were guided by another hiker on the trail to this Toadstool growth.  She told us the general direction where to find it, and we could not miss it.  It was very interesting to look at and was scary and huge.  We could not believe the size of it.  The growth was about 6 feet in total height on the tree trunk.  The colors were very vibrant.  This was by far the largest and most colorful Toadstool I have ever seen.