Activity Information


Basic Navigation Field Trip - Students (Heybrook)

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Seattle Navigation

Wesley A. Rogers

6:45 AM

Heybrook Ridge, Index WA

Before you can sign up for this Field Trip, you need to first sign up and pay for the Basic Navigation Course.

Field Trip Details:
This is a full day event which takes place on a Saturday or Sunday in the mountains on Heybrook Ridge near the town of Index, WA. Carpooling is strongly encouraged because we'll be parking on private land with very limited space, so please specify your carpool preferences when signing up (or edit them later). Then click the link in your Profile to view other students' carpool preferences so that you can organize your own carpooling arrangements.
1) You'll need to be in reasonable physical condition since you'll be gaining about 1800 ft of elevation (roughly half the elevation for Mount Si).
2) Come prepared as you would for a scramble or snowshoe trip, but please leave your ice ax at home. This includes over-the-ankle high-top boots, a waterproof outer layer, warm clothes, the 10 essentials, lunch, etc. You'll find out more things to bring when you attend the Workshop.
3) Bring your Field Trip packet which you received at the Workshop. Make sure to read the FIRST and LAST pages, and maybe skim through the rest of it.
4) Bring your compass. Unfortunately you can't share a compass with someone during the Field Trip.
5) Bring both of the maps you used in the Workshop. Unfortunately you can't share maps with someone during the Field Trip. Maybe fold your maps to the area where we'll be, and put each map into its own gallon ziplock bag.
6) Bring a sharp pencil (mechanical pencils work great).

The Basic Navigation field trip consists of a full day field trip at Heybrook Ridge. The day starts off with a brisk trail hike from a parking lot to the fire tower on the ridge (900 feet of elevation gain). That is followed by:

Taking bearings on stumps.

Doing a set of story problems with map and compass, using the same stumps.

Following a bearing cross-country (rugged off trail travel) for about 1/8 mile.

Triangulating your position using your map and the bearings to surrounding mountain peaks.

A hike farther up the ridge (several hundred more feet of elevation gain).

An extended cross country navigation exercise through rugged terrain (off trail travel) for about ¾ mile.

The exercise often occurs in good weather, but may be an even better (more realistic) learning experience in bad weather. The field trip goes rain or sleet or shine.

Details on the field trip are found at and will be provided at the preceding workshops, which must be completed to be eligible for the field trip.

Students must carpool for the field trip because of very limited parking. Sign up as a rider or driver; if a driver, indicate how many passengers you can take. The Friday afternoon before the field trip the contact information for your riders or driver will be available online or through the sign-up line (206-521-6001) between 1:30 pm and 5 pm.

Remember, you must sign up and pay for the course before attending the workshop and field trip events.

Click here to sign-up and pay for the Basic Navigation Course.

Click here to choose a workshop.

09/03/12 @ 9:00 AM

02/07/13 @ 5:00 PM

Trip Data



USGS Baring
USGS Index

Wilderness Navigation
Mountaineering: The Freedom of the Hills, 8th ed

Mount Baker-Snoqualmie National Forest


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