You may be referring to "The Enchanted Forest"...

Still more single track available, both further east along Parmenter and to avoid Brook Rd.

East Side ride:

http://app.strava.com/rides/20224405

Perimeter loop (old GPS from 2010, obviously missing new trails). Hillbilly Heaven was created to bypass the arduous ride up Bartlett Rd.

http://app.strava.com/rides/14399727