Print Out Membership Form:

Orienteering finish


Our membership fees are $10 for individuals and $15 for families. There are no group memberships.

Memberships are good for a full 12 months after you join or renew, so your membership will be valid until one year from your sign-up date. We will send you a reminder e-mail when your membership is about to expire, so that you can renew with no gap in membership.

Members get a break in meet fees! GCO members also get members' rates at BAOC and other clubs' meets!

Print and fill out the membership form (in left box).

Make checks to GCO; send the form to: Marsha Jacobs, 2077 Fallen Leaf Lane, Lincoln CA 95648 or bring it to the next meet!

GCO has an electronic mailing list (a YahooGroup). It is used by club leaders to communicate with members, seek help, plan future events and discuss the sport of orienteering. You don't have to be a club member to subscribe; once you join, you can send e-mail to the group, as well as receive all the messages sent by other members.

The group also has a web page at that contains searchable message archives, a subscriber list, subscription management services, polls, chat, and file storage (for photos, maps, etc.). Access to the Web services requires a Yahoo ID (you don't need a Yahoo ID just to send and receive e-mail).

If you already have a Yahoo ID, then you may wish to associate your subscribed e-mail address with your ID; go to Account Info at and follow the instructions. If you want an ID, then go to and make a Yahoo ID. Then there are a few steps to associate your new ID with your subscription to the GCO group; follow the instructions at, or contact the group moderator if you need help.