Most og the trails are on the east side of the valley. Trails kriss cross each other,, and you will have a real struggle doeing them all in a looong day.
Earn your turns. On the west side of the valley you will have to pedal up your self. There are gravel roads that make it easier thoug. The trails here are generally smoother than the east side, and takes a day longer to dry up.
In the mountians you will find ahort and long round trips. Over a peak or around it. Enjoy the view before you ride down to the car, or all the way down to city center.
You find all the trails at trailguide.net