Not much fuss over it by the community. It’s been three years since it started, and yes, there was a NIMBY that opposed it. It is closer to the actual crash site, unlike another memorial tree at Lovers Point.
Google Earth View 
Enter your Zip Code and get directions to the memorial:
In the recovery efforts following the crash, Denver’s head was never found.
There are some that say that on a quiet night, you can hear the ghostly sound of his voice singing as the wind whispers through the pines there. The song the ghost of his missing head sings is always the same- this old American jazz-blues classic:
http://www.youtube.com/watch?v=ruLIkHIIuwE