Tahoe Backcountry Ski Patrol links to wilderness resources including medical, avalanche, and other courses. Also provides Sierra weather and avalanche warning information. US Army Field Survival Manual . Learn how to stay alive in adverse conditions. National Mountain Bike Patrol , a program of the International Mountain Bicycling Association .
Club trips to California, Nevada, and other places in the desert southwest.
Provide a nice Mountain Bike Beginner's Guide . Miscellaneous National Geographic Adventure . Outstanding magazine on travel and adventure worldwide. Not strictly speaking outdoor related, but I always take my camera on hikenbike trips anyway. SF Sidewalk Sports provides excellent activity-specific search engines for outdoor pursuits.