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Willamette Mission State Park


Event Overview

Willamette Mission Park is a 1,680-acre state park with many miles of trails winding along the Willamette River, backwater sloughs, and agricultural fields. The park is very accessible, yet large enough to give participants a feeling of "getting out there." There is a nice mix of paved paths, open farm fields, and wooded "thickets" to explore. The terrain is flat and looks open, but most of the orienteering route choices will include trails due to blackberry thickets or other dense vegetation or cultivated land which may or may not be planted. The advanced course will be designed with the challenge of multiple route choices for most legs, and will be a little longer than typical due to the flat terrain.

Due to enthusiastic stinging nettles in parts of the course, wearing long pants or running tights is highly recommended.

If this is your first time orienteering, welcome! Free beginner clinics are offered as needed at this event to teach you everything you need to know.

We use an electronic scoring timing and scoring system known as “e-punch”. Each entry or team needs to have an e-punch fingerstick. If you don't have your own fingerstick, you can rent one at registration for an additional $5. Using the e-punch" system is easy. You can learn how at the event, or read about e-punch here.


Intermediate Skills Workshop (Topic TBA)

Intermediate workshops are for people who want to improve their navigation skills beyond the Experienced Beginner level. Meet at the registration area at 10:00; no additional fee for the workshop. We’ll finish by 11:00 so you can apply your new skills to a course of your choice.


  • Intermediate skills workshop 10:00 am - 10:45 am

  • Registration 10:30 am - 12:45 pm

  • Beginner clinics 10:45 am - 12:00 noon as needed

  • Intermediate workshop: Contours - 10:00 to 10:45 am

  • Course starts anytime between 11:00 am - 1:00 pm

  • All courses close at 3:00 pm

All teams must check out through the course finish before leaving the park, even if the team does not finish the course or returns after the course closes.



  • White:  Beginner (about 2 Km, 10 controls, easy, on-trail and near-trail navigation)

  • Yellow:  Beginner / Intermediate (about 3 Km, 12 controls, easy, on-trail and near-trail navigation)

  • Orange:  Intermediate (about 4 Km, 12 controls, some off-trail, mostly on-trail navigation)

  • Green:  Advanced (about 5 to 6 Km, 14 controls, some off-trail, mostly on-trail navigation)


All CROC orienteering events are put on by volunteers, and the meet director can almost always used some extra hands. Please keep in mind:

  • No prior experience is needed for many of the tasks

  • You can help out AND still run your course of choice 

Typical ways to assist are: helping with starts and finishes, checking in folks at registration, and picking up control flags after the course closes.
Please contact the meet director at the email on the bottom of this page if you'd like to volunteer at this event. For more details, see the Volunteer pages.



Results are posted to the Events & Results web page a few days after the event.



CROC event fees do not include any extra day use fees charged by the park. You must pay these separately. Oregon State Parks charges $5 for day use, $30 for a 12 month pass and $50 for a 24 month pass.

Payment is by cash or check only; credit/debit cards are not accepted.

Former CROC members who have let their membership lapse pay non-member fees.

Fees for this event are:

  • $7 - individual (base rate)

  • +$5 - any additional persons in your group

  • +$5 - not an orienteering club member

  • +$5 - epunch fingerstick rental

  • Scout or youth groups - $12 per team

Become a CROC member   -   Buy your own epunch


Meet Director: Alison Crocker


Latitude longitude coordinates of event:  45.0797, -123.0306

Click for for a Google map, or copy/paste these latitude longitude coordinates into Google maps or your smartphone mapping app to get a map and driving directions to the event.

Driving directions from Portland:

  • From Portland city center, take I-5 south about 35 miles. Take exit 263, and head west.

  • Go west about 4 miles then take a right on Wheatland Road.

  • Go north on Wheatland Road about 4 miles, and turn left turn into the park.

Earlier Event: June 3
CROC Board Meeting