SIERRA Overviews
  MTBR: Bay Area Trails
  mtb.live.com - Mtn Biking in SF Bay Area
  microweb - Roger's Favorite Single Tracks
  mtb.live.com - Mtn Biking in SF Bay Area
  MTBCA - Map

Auburn Area - OTE Ratings: Ox/Tx/Ex - Sierras
  ??mtb.live.com - Description and Suggested Trails
  ??MTBCA: Auburn Area
  microweb - Downieville Info

Downieville - OTE Ratings: Ox/Tx/Ex - Sierras
  mtb.live.com - Description and Suggested Trails
  ??MTBCA: Bogg's Mountain
  microweb - Downieville Info

Hole in the Ground - OTE Ratings: Ox/Tx/Ex - Sierras
  ??mtb.live.com - Description and Suggested Trails
  ??MTBCA: Lake Tahoe Area
  Map of Trailhead
  unicycling.com - Description and Trail Suggestions
  microweb - Hole in the Ground Info

Tahoe Rim Trail - OTE Ratings: O8/T6/E7 - Sierras - (N 39.30793°, W 119.90799°)
  ??mtb.live.com - Description and Suggested Trails
  ??MTBCA: Lake Tahoe Area
  microweb - Tahoe Rim Trail To Tahoe City Loop Info
  microweb - Spooner Summit To "The Bench" Overlook Info
  microweb - Kingsbury Grade To "The Bench" Overlook Info
  microweb - Tahoe Rim Trail Info
  microweb - Tahoe Rim Trail Info

Toads - OTE Ratings: O9/T9/E9 - Sierras - (N 38.790647°, W 119.99989°)
  mtb.live.com - Description and Suggested Trails
  ??MTBCA: Lake Tahoe Area
  microweb - Tahoe Area Info
  unicycling.com - Maps, Description and Trail Suggestions

Lake Tahoe Area - OTE Ratings: Ox/Tx/Ex - Sierras
  ??mtb.live.com - Description and Suggested Trails
  ??MTBCA: Lake Tahoe Area
  microweb - Tahoe Area Info

Others: - OTE Ratings: Ox/Tx/Ex - Sierras
  ??mtb.live.com - Description and Suggested Trails
  ??MTBCA: Lake Tahoe Area
  microweb - Big Meadow To Freel Pass Info
  microweb - Big Meadow To Pacific Crest Trail Info
  microweb - Star Lake From Heavenly Valley North Info
  microweb - Info
  microweb - Info