Course designer(s): Dave Tallent, Kean Williams
Big thanks to Nikolay Nachev for flagging control locations and to Jourdan Harvey and Celia Schofield for setting controls and water!!
Zygoat (intermediate navigation) – skip 1 control – 3.5 km, 11 controls, there is some climb (50 m)
Kid (advanced navigation, Jr. and Masters) – skip 2 non-consecutive controls – 6.9 km, 15 controls, quite a bit more climb (200 m)
Goat (advanced navigation, Open) – skip 2 non-consecutive controls – 12.3 km, 29 controls, a lot of climb (350 m)
There is no beginner course at this event.
How are courses measured?
Courses are measured as the crow flies, in a direct line from control to control. Unless you have wings, you will travel farther than this distance! Courses are measured in kilometers, so a good rule of thumb is to simply round up to miles to estimate how far you will go. So in a 5 kilometer race, you’ll likely travel up to 5 miles.
Salmon La Sac is beautiful, rugged, and navigationally complex. There are many reasons why this venue tops the scales at 10/10 in both of CascadeOC’s physical and navigational ratings! The terrain consists of open runnable forest, giant slabs of rock, thousands of knolls, boulders, and cliffs, and some thicker areas of vine maple, downfall, and logging debris. Salmon La Sac poses a significantly greater technical and physical challenge than an average orienteering meet on a college campus or in a city park.
The Intermediate course will require basic contour reading, and will have most checkpoints within 100 meters of trails and roads. The two advanced courses (Short Advanced and Long Advanced) will be almost entirely off trail, requiring detailed contour reading, and precise navigation to point features.
All maps are 1:10000 scale with a contour interval of 5m and will be printed on waterproof paper. The Long Advanced and Short Advanced courses will be printed on 11″x17″ paper, while the Intermediate course is on 8.5″x11″ paper.
Maps will be handed out and timing will begin near the registration area. You’ll then follow a marked route approximately 100 meters to the start marked on your map (there is no start punch).
We’ll have water available in the parking/registration area. There will also be water available on the Long Advanced and Short Advanced courses, at one control that you’ll visit twice on each course. It is still advisable to carry water with you on the course, especially if it is hot!
If you need to exit to safety, there are two different safety bearings for the two areas of the map. If you’re north of the out-of-bounds, then you’ll want to head south/downstream to the road, which will get you to the road or trailhead. If you’re south of out-of-bounds, you’ll want to head west to the Cle Elum River Road. These are noted on the maps.
Terrain & Map
This map was originally made in 2009 and is in generally good shape. The most recently logged areas have grown somewhat over the years, so mapped areas of rough open land with scattered trees can seem more light green in reality. There is vine maple in the deeper reentrants, but courses are designed around the worst of it (and they don’t have thorns, so it’s not too unpleasant). A lot of the map has quite nice and runnable woods and moss-covered slabs of rock!
Speaking of rock, there’s a lot of it, in many different forms. Giant slabs of moss-covered rock are mapped as open land. There are thousands of boulders, cliffs, and rocky knolls, not all of which are mapped. Boulders smaller than 1m in height are usually not mapped. Some rocky slopes (some covered in moss, some not quite steep enough) are not mapped as cliffs, just as contour lines. I’ve used a lot of rock features as control location on the advanced courses.