Clubs and Organizations

The closest official Orienteering Club is Los Angeles OC
One of the finest maps and terrains for orienteering offers San Diego OC
The most active, but far Bay Area OC
Other near orienteering clubs:
Gold Country Orienteerers (Sacramento)
Monterey Bay OC
Tuscon OC
Radio Orienteering: starting at Southern California - Orienteering fox hunt: Radio Orienteering
Very interesting WWW side with combined west coast schedule, info on orienteering and SCONET (Southern California Orienteering Network - mailing list run by Caltech server!):
SCONET

More Global Information:
Orienteering and Rogaining Home Page
US Oriententeering Federation
International Oriententeering Federation

Clinics

What is Orienteering?
List of things to take with you
SCONET clinics
A guide on how to use a compass.

Environment

Information about poison ivy, oak and sumac from Canada
Let's talk about poison oak (from Palo Alto)
More scientific approach to the poison oak problem
Several words about mountain lions (article in TIME magazine)