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Mary S. Young State Park - West Linn

MSYSP sign.jpg

Quick Info

  • NEW - online registration, details below

  • Date: Sat. Sept 28 (10 am to 3 pm)

  • Location: Mary S. Young park, West Linn / Lake Oswego area

  • Courses: Four different courses for all skill levels; Classic point-to-point orienteering format

  • Intermediate skills workshop: from 10:00 to 10:45, details below

  • Meet Director: Ken and Debby Wenzel


CROC is transitioning to a online registration system, and we'd love for you to use it! This has several benefits:

  • Makes things fast and easy for YOU on event day (no paperwork or payment)

  • Helps meet directors know how many maps to print

  • See who’s attending, maybe plan a carpool


  • Online registration closes Thursday, Sept 26, 2019 at 1:00pm

  • Day-of-event registration is also available, payment by cash or check only

  • Refund policy: full refund if requested more than 48 hours before the start time of the event. Email us to request a refund and we’ll work it out

Event overview

If you don't live nearby, Mary S. Young Park is probably the most scenic park you never heard of. The western part of the park features a network of trails winding through a cool shady forest. Near the parking areas, a couple of large open fields offer contour detail, trees, bushes, and other features. The eastern part of the park plunges to the Willamette River on trails that negotiate a dramatically eroded landscape. The river's edge has rock formations, sandy beaches, and islands. All courses will use the trail system; so bring your running shoes. Well, for the longer courses, bring older running shoes. 

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

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

ADVANCE REGISTRATION IS ENCOURAGED FOR THIS EVENT. A link to this will be added about 30 days before the event.

Advance registration is used because it:

  • Makes things fast and easy for YOU on event day (no paperwork!)

  • Helps meet directors know how many maps to print


  • White:  Beginner (about 3 km, on-trail and near-trail navigation)

  • Yellow:  Beginner / Intermediate (about 3-4 km, on-trail and near-trail navigation)

  • Orange:  Intermediate (about 4 km, off-trail and on-trail navigation)

  • Green:  Advanced (about 6 km, some trail, mostly off-trail navigation)

Intermediate Skills Workshop - Pace Counting and Compass Bearings

Intermediate skills workshops are for people who want to advance their skills beyond the Experienced Beginner level. Each session focuses on a particular skill. Meet at the registration area at 10:00; no additional fee for the workshop. After the workshop you will have time to register and do your course of choice.

Pace Counting and Compass Bearings

A key pair of skills for off-trail navigational are these: matching distance on the map to your pace count, and following a compass bearing to get to your destination. We’ll play a game to learn and practice these skills.

Meet at 10:00 a.m. by the registration area.



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

  • Registration 10:30 am - 12:45 pm

  • Beginner clinics 10:30, 11:00 and 11:30

  • Course starts 11:00 am - 1:00 pm

  • All courses close at 3:00 pm

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



Day-of-event registration is by cash or check only; credit/debit cards are not accepted.

Park Fee: Oregon State Parks charges $5 for day use, $30 for a 12 month pass and $50 for a 24 month pass. The day pass fee may be paid at the entrance station before you enter the park.

Event Cost

  • $17 base price - individuals

  • $22 base price - groups of 2 or more

    - Subtract $5 for membership in CROC or other O-club

    - Subtract $5 if you have your own e-stick

$12 - organized Scout or other youth group

Become a CROC member   -   Buy your own epunch


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 address on the bottom of this page if you'd like to volunteer at this event. For more details, see the Get Involved pages.



The team time will be posted to the Events & Results page a few days after the event.


Map and Driving Directions

45.3804, -122.6278

Latitude longitude coordinates of the event site. Copy and paste these into a mapping app on your phone or Google maps to get a map and driving directions to this location.

From Portland City Center:

  1. Get on Macadam South, which runs along the Willamette River on the west bank. (This road is OR 43)

  2. Go south on OR 43 to Lake Oswego, about 6 miles.

  3. From Lake Oswego, continue south on OR 43 about 2.8 miles to the park.

  4. Follow the orienteering signs to the main loop parking lot at the east end of the park.

Earlier Event: September 28
Teanaway Cup (central WA)