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Mary S. Young Park

  • 19828 Willamette Drive West Linn, OR, 97068 United States (map)

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. 



  • Registration 10:30 am - 12:45 pm
  • Instruction Clinics 11:00 am - 1:00 pm as needed
  • Course starts 11:00 am - 1:00 pm
  • Courses close 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.



  • White: Beginner (about 2 Km, 8-10 controls, easy, on-trail and near-trail navigation)
  • Yellow: Beginner / Intermediate (about 3 Km, 10-12 controls, on-trail and near-trail navigation)
  • Orange: Intermediate (about 3.5 Km, elevation gain, 10-12 controls, some off-trail, mostly on-trail navigation)
  • Green: Advanced (about 5 Km, 15+ controls, elevation gain, mostly on trail with some off-trail navigation)

Electronic punching (E-punch) will be used on all courses.  Rental fee is $1.



See a map of a previous event here.



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
  • Your entry fee is FREE if you help out with a meet!  

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 Volunteer pages.



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


Registration and other costs

The event is open to the public. Note: If you join CROC at this event, ($15 individual, $20 family/group annual membership), your event fee is FREE! Ask about this at meet registration. All participants must register and sign the liability waiver before entering the course. Each participant or team receives a course map and a control description sheet.

The Columbia River Orienteering Club event fees are:

  • $8 - individual (non-member)
  • $12 - group (non-member, going out using one map)
  • $6 - individual (club member)
  • $10 - group (club member, going out using one map)
  • $1 - extra copy of color map
  • $1 - compass rental
  • $1 - epunch rental



Meet director: Anndy Wiselogle 

Map and Directions

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. Proceed 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.