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General GCO Meet Details - how most meets work

Registration for most GCO events opens at 8:30 a.m. and closes at 10:30 a.m. Starting times are assigned from 9 to 11 a.m. Beginner Instruction is offered as requested. Courses close at 1.00 p.m.


Our fees: $10 for each adult and $5 for each child or youth (ages 7-18) for non-members and $8 for adults and $4 for children or youths for members of GCO or other Orienteering clubs.

A second course is $2 per person. You can also rent a compass for $1.

You can save time, particularly for groups, by filling out a Registration Form (left). Use ONE FORM for each individual or team going out together!!

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All upcoming GCO events

and BAOC and Terraloco events of local interrest

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January 26th (Sun): BAOC - Coyote Lake - Harvey Bear Ranch County Park
Gilroy, CA.

Standard B-event with 7 courses to choose from. Everyone is welcome, including none-members and beginners. Pending park approval.

Link to: BAOC Coyote Lake - Harvey Bear Ranch

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Feb 9th (Sun): BAOC - Point Pinole Regional Shoreline, Richmond, CA.

C-event with shorter courses in a smallish park. Everyone is welcome, including none-members and beginners. Pending park approval.

Link to:BAOC Coyote Lake - Harvey Bear Ranch

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March 1-2: BAOC - Western States Championships - Calero County Park
San Jose, CA.

A-meet: Two day National Ranking Event (NRE) on a new map of a classic venue.
7 courses to choose from, everyone is welcome, including none-members and beginners.
Pending park approval.

Link to:BAOC NRE / A-meet: Calero

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March 9th (Sun): BAOC - Browns Valley Open Space Preserve, Vacaville, CA.

C-event, more details tp follow. Everyone is welcome, including none-members and beginners.
Pending park approval.

Link to:BAOC Browns Valley

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March 15th (Sat) or 16th (Sun) - GCO Mississippi Bar, Fair Oaks, CA

Classic Event with six courses. Snowberry Creek Assembly area, 4857-4872 Maine Av., Fair Oaks, CA 95628. More location info: Mississippi Bar, Sacramento

You can run individually or as a team. Classic pin punches and punch cards are used. Event Directors / Course Setters = Danny Lulla & Dan Rathbun

April 12th (Sat)- GCO Mashall Gold State Park

Score-O event with mass start, 310 Black Street, Coloma, CA 95613: Marshall State Park

You can run individually or as a team. Event Directors / Course Setters = Danny Lulla, more details to follow.

May 17 (Sat) or 18 (Sun) - GCO Sacramento Bar

Join us for a the first score-O event ever at Sacramento Bar and The Lower Sunrise Area set by Kyle Polak on one of our best maps!

You can run individually or as a team. Classic pin punches and punch cards are used. All check point have to be visited in the order they are marked. Max time is 2 hours.

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July 25-28: BAOC - Tahoe 4-Day, Lake Tahoe Area, CA.

A-meets, Four days of fun! One National Ranking Event (NRE) Details to follow. Pending park approval.
Link to:BAOC Tahoe 4-Day

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September 21st (Sun) - GCO Old Town Fair Oaks Street-O

Score-O event on the streets and in the parks in and around old town Fair Oaks. Sort of like a treasure hunt with questiosn that can only be answered by visiting the check point.

You can run individually or as a team. No control bag and no punches. Check point can be visited in any order. Max time is 90 min.

October 25th (Sat) - GCO Rossmor Bar

6 great courses in this interesting and runnable parkway woodland. Course Setter: Nic Weber, Event Director: Ryan Zahner

Everyone is welcome, including beginners with free, brief beginner instructions available.

From U.S. Highway 50, take the Sunrise Blvd. off-ramp, heading north. Turn left onto Coloma Road.
Turn right on Rossmoor Drive (!) to access the boat launch in the NW area of the park (NOT the El Manto Entrance this time).

Parking: Sacramento County Park Permit or $7 per Vehicle, payable in cash in an envelope at the entrance.

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December 21st (Sun) - GCO's X-mas Old Town Folsom O-Scramble!

Scramble style = find as many checkpoints as you can and return to the start/finish before time runs out.
Mass start at 10:30 am. Time limit is 90 minutes. Penalty for Overtime.
Event Director and Course Setter: Dwight Freund.

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Come and have fun with us!

More scheduled events:

  • Bay Area Orienteering Club (BAOC).
  • terraloco Urban and wild map adventures.
  • Nav-X Map Trekking Series.
  • Los Angeles Orienteering Club.
  • San Diego Orienteering.

  • Abbreviations: W = White, Y = Yellow, O = Orange, Br = Brown, Gr = Green, R = Red, B = Blue,
    ED = Event Director. CS = Course Setter.
    White and Yellow are beginner courses. Orange is intermediate. Brown, Green, Red and Blue are all advanced courses with varying lengths and physical difficulty.
    Scrambles (also known as Score-O) are mass-start events in which you find as many controls as possible, in any order, within the time limit.

    All meets are tentative, subject to park approval!! Dates might be changed for various reasons, so always check here! Look for more details on the meets closer to the date.

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