Head east on bike American River bike path, just passed kiosk will be single track, it will criss cross pavement, if there is not any trail just keep it on the dirt on either side. Go under the new Folsom bridge make a right, climb to bridge, cross bridge headed north.
Other end of the bridge turn right, go down to bike path, go left toward dam, single track runs willy nilly on the way to Beal Point passed dam. Head toward Granit Bay on fire road. There is single track so snoop around, fire trail will take you to Granite Bay.
At Granite Bay there are many choices so do yours, I at least do first hill. Ride ranges from 27 to 38 miles
Park at the Hazel parking north side of hwy 50
http://www.singletracks.com/item.php?c=1&i=2844