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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.

All upcoming GCO events

(and BAOC, Terraloco and Nav-X events of local interest)

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Oct 25 (Sun): BAOC - Scout O-Championship + Regular meet, Tilden Regional Park, Berkeley, CA.

Regular B-meet with 7- or 8-courses: from White to Blue, Link to: BAOC

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Oct 31st (Sat): Terraloco - Haunted Sacramento 5K & 10K, Sacramento, CA.

5K, 10K map adventure courses, Link to: Terraloco .

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Nov 6-8 (Fri-Sun): Terraloco - Golden State Championships, Fresno, CA.

3rd edition of California's state orienteering champs, Sprint+Middle+Long, link to: GS Champs event .

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November 15th (Sunday): GCO - Sacramento Bar

Classic orienteering event with 5 courses centered on the Sacramento bar north of the American River.

WHITE: 1.5-2.5 km, 5-10 controls, beginners, all controls are along the trail or distinct features
YELLOW: 2.0-3.0 km , 7-12 controls, advanced beginners, controls are visible from trails or large features
ORANGE: 3.5-5.0 km, 7-15 controls, intermediate, some route selections, controls near distinct features
BROWN: 2.5-4.0 km, 6-14 controls, advanced, small features.
RED: 5.0-7.0 km, 10-20 controls, advanced like brown but longer legs and more varied and challenging terrain

8:30 - 10:30 Registration open
9:00 - 11:00 Start is open, 2 minute intervalls
13:00 Courses closed and control pick up begins

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.
There are bathrooms and water at the start / finish area

Event director and course setter is Dan Rathbun

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Nov 22 (Sun): BAOC - Golden Goat, Golden Kid and more, Black Diamond Mines, Antioch, CA.

Extra long "Goat"-courses, and shorter alternatives, no beginner courses. Link to: BAOC

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Dec 19th (Sat): Terraloco - Holiday Hustle 5K & 10K, Sacramento, CA.

5k, 10k map adventure courses, link to: Terraloco .

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December 27st (Sunday): GCO's X-mas O-Scramble in
Old Town Fair Oaks, CA

This year's X-mas scramble is in lovely toony Old Town Fair Oaks!

Start location: Plaza Park, 7003 Parks Dr. Fair Oaks, CA 95628.

This is on the west side of the Village Park where we started last year,
There is limited parking right there, but plenty around the park and on the streets to the south east.

10:00 Registration starts
10:30 Score-O mass start
12:00 Score-O finish
(Scramble style = find as many checkpoints as you can and return to the start/finish before the 90 min time limit runs out.)

Event Director and Course Setter: Jonas Libell

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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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