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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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July 1st to Sep 30: NAV-X - Map Trek #4 at 100 Lakes, Tahoe, CA.

4- or 8-hour wilderness score-O with GPS verification (phone app required), Run on your own schedule anytime in July through September. Link to: Nav-X.

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Aug 22nd (Sat): Terraloco - Fillmore-Japantown Find-Your-Way, SF, CA.

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

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Sep 20th (Sun): BAOC - Joaquin Miller Park, Oakland, CA.

Format to be determined. Beginners and non-members are welcome. Free beginner instruction available.

Link to: BAOC

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Oct 3 (Sat): BAOC - Camp Tamarancho, Fairfax, CA.

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

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October 10th (Saturday): GCO - American River College Campus, Sacramento, CA.

SPRINT EVENT on a NEW SPRINT MAP!
Address: 4700 College Oaks Driver, Sacramento 95841
More details to follow
Course Setter: Nik Weber.

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October 18th (Sun): GCO - Rossmoor Bar, Rancho Cordova, CA.

A brand NEW map built from the ground up will be making its debut!
Come out to enjoy some relatively open floodplain woodlands with lots of topographic details (little hills and depressions). Everyone is welcome, all skill levels including beginners, with free beginner instructions available!

5 different fun courses, from the beginner level (white) to challenging (red),
RED: 5.0-6.0 km, 10-20 controls
BROWN: 2.5-4.0 km, 6-14 controls
ORANGE: 3.5-5.0 km, 7-15 controls
YELLOW: 2.0-3.0 km , 7-12 controls
WHITE: 1.5-2.5 km, 5-10 controls

Red and Brown = Advanced = Route choices and small features as check points
Orange = Intermediate = Some route choices, check points near distinct features
Yellow = Advanced beginners = Mostly on trails, but the check points can be off the trails
White = Easy beginners = Completely on trails or along distinct features (like a fence lines)

From U.S. Highway 50, take the Sunrise Blvd. off-ramp, heading north. Turn left onto Coloma Road.
Turn right on EL Manto Drive (If you take Rossmoor Drive you'll end up at the wrong parking lot!) to access the parking area on the east side of the park next to the river.

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

Course Setter: Jonas Libell, Event Director:

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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

Getting there, About Sacramento Bar Park.

8:30 Registration opens
9:00 First start
10:30 Registration closes
11:00 Last start
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 picnic area

Event director and course setter is Dan Rathbun

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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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