Each day is a different ride in a different location. The first day in 2010 started at Puma Canyon on South Mountain in Phoenix.

This is something more than just a loosely organized group of friends, but is far from a sponsored money maker, so the organizing is hard to follow and the website seems to change each year, often just being an mtbr forum post. If I have any info wrong here, please comment or use the contact form in the menu at the top of the page. thanks.

This is an old site http://azsf2009.wordpress.com/ that they might be resurrecting

http://forums.mtbr.com/arizona/azsf-2012-march-14-18-2012-a-763592.html