Summit County has a free bike guide with a trail description of difficulty, distance, elevation, type of road and driving directions.

Pick it up a the Frisco Visitors Center, 3rd and Main, or if you're an outlet mall shopper you can pick it up at the Silverthorne Visitor Center in the outlet mall near Pure Mtn Sport, exit 205 then turn north (right at first light).

The bike shops also had them, we know they are at Mountain Sports Outlet and Christy Sports in Silverthorne, they also rent bikes.

According to the book a good trail for families and novices is the Crown Point Trail. It's a 5 mile out and back. The description is on page 36 of the Guide. I have not ridden this trail but it sounds like a good one.

If you're driving gasoline is averaging .20 higher in the mtns so top off at Georgetown.