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Our Schedule

NEW schedule times!!! 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. (NOTE: These times do not apply to the May 18 Deer Creek Hills meet (below). Beginner Instruction is offered as requested. Courses close at 1 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.


We offer online registration for some meets! This will save you time, plus give us a better count for printing maps. Here's how it works:

  • You can register and pay for your first course of the event.
  • You can rent a compass.
  • If you register online, you also have to pay online, using a credit card.
  • To further help speed things along on the day of the event, our liability waiver is available during checkout.
  • Online registration for the May 18 Deer Creek Hills meet closes at 11:59 p.m. on May 15.

If you sign up online, and make sure to complete all the information in the signup process, you will be able to simply walk up to the check-in table. No additional paper forms (except when an additional waiver is required by the property owner or manager); it's all done online. You can register online for the May 18 Deer Creek Hills meet here.

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!!

PRE-REGISTRATION OPTION FOR GROUPS such as JROTC or Scouts with multiple teams. Contact the Event Director for each meet on the possibility of emailing your list of teams and courses a few days before the meet to save time.


2019

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.

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.

Looking for other nearby orienteering meets? Check out Bay Area Orienteering Club (BAOC), terraloco. and Nav-X Challenge Map Treks.


Meets and Events

Deer Creek Hills
Deer Creek Hills

Two Days at Deer Creek Hills This Weekend!

Saturday, May 18, Deer Creek Hills, Rancho Murieta; W, Y, O, Br, Gr, R, B; ED/CS: Mats Jansson.

Welcome to the first GCO event of the 2019 season at Deer Creek Hills. We return again after the orienteering debut here in 2018, when it was part of the California Orienteering Week.

Deer Creek Hills is a wonderful area, mostly open grazing land with little to no poison oak or thick vegetation. The Western part is oak woodlands, and the Eastern part is open prairie. It's an open space preserve managed by the Sacramento Valley Conservancy and open to the public for special events only. It's one of the nicest navigation sports terrains that we have in the state of California. It's very fast terrain; expect PR performances! Here are a few items to note for the event and courses.

Here are the final statistics:

  • White: 2.0 km, 35m climb, 10 controls
  • Yellow: 2.9 km, 95m climb, 12 controls
  • Orange: 4.3 km, 150m climb, 14 controls
  • Brown: 3.6 km, 140m climb, 14 controls
  • Green: 5.0 km, 205m climb, 17 controls
  • Red: 5.8km, 255m climb, 20 controls
  • Blue: 6.9km, 325m climb, 22 controls

Weather update

As of the time of writing, it looks like we will be blessed with rain starting in the afternoon on Saturday, so if we're lucky we might have a mostly dry day. But it will be wet out in the terrain because of rain earlier in the week. Temperatures will be cool for the time of year with lows/highs of 48F/66F. Dress accordingly. See more on the creek crossing below.

Staging Area

The staging area is located along a fairly rough dirt road. Parking for the event will be in a field next to an old corral. If we don't have a parking attendant, please park in a way that will allow other cars to leave. We have two portable toilets and a hand-washing station rented for this event.

Crossing the creek

There is a creek that flows over the road that leads to the staging area. During heavy rains, it can reach depths that make it hard for passenger cars to get across. Depending on the weather leading up to the event and your vehicle, you may have to park on the "dry" side of the creek, and either use a foot bridge and walk to the staging area (about 0.4 miles), or wait for a shuttle ride (could be a little slow as we may only have 1-2 SUVs). Give yourself extra time either way.

Schedule summary

  • 9:30: Check-in and registration opens
  • 10:00 to 11:00: Beginner clinics
  • 11:00 to 1:00: Starts (remote start 1km from staging area, allow 15 minutes to walk there)
  • 3:00: Courses closed (help pick up?)

Cattle

All cattle is moving out this week, so we will have a cow-free event, yay. I’m sure they left lots of "presents" for you to step on though ;) Look out!

Fences

There are a lot of fences, and some of them are tricky to cross (trickier than most Bay Area venues). When crossing a fence, try to do so in a way that doesn't damage the fence, such as going underneath the lowest strand. There are a few gates (marked) that allow easier passage; use these whenever possible. Some of these gates are pretty hard to open normally, so we have constructed a mechanism using a thick bungee cord that will make opening and closing these gates faster and easier. MAKE SURE TO LEAVE GATES AS YOU FOUND THEM. IF OPEN, LEAVE OPEN; IF CLOSED, LEAVE CLOSED.

Water

There will be two water stations for the longer advanced courses. One is by a control, one is by a mandatory way-point. Green and Red have one water control roughly in the middle. Blue will have two water controls. They are marked on the map.

Clothing

The soft green grass of spring is slowly drying out and going brown. And with the grazing, the grass is not as tall as it otherwise would be. Earlier in the season I ran out there in shorts, but you might consider long pants and/or gaiters this time of year. The terrain is not particularly steep or slippery so regular running shoes should be fine, although with the weather forecast it will be more slippery than usual. Creeks and some drainages will likely be wet from the recent rain and you might have to search a little to find a place to cross some of the larger streams.

Map

The map is 1:10,000 with 5 meter LiDAR contours and a number of 2.5-meter form lines in the flat areas. The area immediately North and East of the corral has been field checked for orienteering level quality with lots of point feature detail. It was field checked in 2018. There are a lot of old irrigation ditches which are mapped as a small erosion gully that closely follows a contour line. The boundaries between open forest, open land with scattered trees, and open land are a little arbitrary in some places but overall it's pretty good.

We look forward to seeing you on Saturday, rain or shine.

Mats Jansson
Course Setter and Event Director

You can register online for this meet. This will save you time, plus give us a better count for printing maps. Since this is a National event, we are charging higher fees than for our regular meets. Note the three levels: Early Bird pricing until March 24 (already passed), higher fees until May 15 and even higher day-of registration. Here's how it works:

  • You can register and pay for your first course of the event.
  • You can rent a compass or an e-stick.
  • If you register online, you also have to pay online, using a credit card.
  • To further help speed things along on the day of the event, our liability waiver is available during checkout.
  • Online registration for this meet closes at 11:59 p.m. on May 15. You can still register and pay at the meet, but with higher fees.
fees

If you sign up online, and make sure to complete all the information in the signup process, you will be able to simply walk up to the check-in table. You will have to sign a liability waiver for the Sacramento Valley Conservancy.

You can register online for this meet here. You can see who has registered here.

Volunteer to help us out and get one meet free! Sign up for a task here.

Sunday, May 19, Deer Creek Hills, NAV-X will be holding a two- or four-hour map trek. Look for details and signups here. Here are event and course notes.

Get details about Deer Creek Hills, including directions and a map link here.


Saturday, Oct. 5, Orangevale Community Park, Orangevale; W, Y. O; ED/CS: Jennifer Kerr.

Sunday, Nov. 17, Sacramento Bar and Upper Sunrise; W, Y, O, Br, R; ED: Dan Rathbun; CS: Jonas Libell.

Sunday, Dec. 15, Old Folsom Holiday Scramble; Scramble (Score-O); ED: TBA; CS: Dwight Freund.