I have always wanted to hike Camelback from end to end.  It's not that long really, but a bit of a logistical nightmare for one person.  Without spotting a car or biking back, it's a long way back to where you started.  This morning, my wife dropped me off on the East side of the mountain so I could go hike end to end and finish by walking home.  Most people do either one of the two out and back trails there, Echo Canyon being the most popular.  Today, I hiked Camelback from the Cholla Trail to the top then exiting via the Summit Trail (Echo Canyon).  I found my new Monday workout!  However, I think it would be best for me to start on the other side.  There are some very steep downhills and I would rather hike up those and save my knees a few more years.

Camelback Mountain - East side trail is not highlighted but I did mark the start of the trail-->

Detailed Echo Canyon Route-->

A trail map and details can be found here in the city's website.
http://phoenix.gov/PARKS/hikcmgud.html

The Google Earth version of the Echo Canyon Trail map.