Field trip: Backpacking Building Blocks (B3) Course
Backpacking Building Blocks Student-Only Backpack - Tubal Cain Mine, Buckhorn Lake & Marmot Pass
On this field trip, we'll spend a 3-day weekend exploring the Buckhorn Wilderness area of Olympic National Forest. We'll tackle Buckhorn Pass and Marmot Pass, and possibly do a dayhike to Constance Pass. Registration priority given to Colin & Ellsa's mentor group; other students welcome to join if space is available.
- Fri, Jul 11, 2025 — Sun, Jul 13, 2025
- Foothills Backpacking Committee
- Backpacking
- Adults
- Moderate
- Moderate
- Mileage: 32.0 mi
- Elevation Gain: 8,100 ft
- 6 (6 capacity)
- 1 (2 capacity)
- Cancellation & Refund Policy
Tubal Cain trailhead
(https://maps.app.goo.gl/onCD9kuztPa8ybySA)
A Northwest Forest Pass or America the Beautiful parking pass is required at the trailhead
Friday July 11th at 9am
This is a beginner’s backpacking trip, giving students the opportunity to try out their gear and apply the skills they've learned in the B3 course. We’ll be exploring the Buckhorn Wilderness in the Olympic National Forest.
On our first day, we'll start hiking at the Tubal Cain trailhead, collect water at Copper Creek, and continue up to our dry camp at Buckhorn Pass (7 miles, 2700' gain). After setting up camp, we can do an optional dayhike to the summit of Buckhorn Mountain (3.2 miles, 1200' gain). On our second day, we'll pack up and continue south in the shadow of Buckhorn Mountain, tackling Marmot Pass and then descending to Boulder Camp (3.5 miles, 500' gain). We'll set up camp and then do an optional dayhike to Constance Pass (7.5 miles, 2200' gain). On our third and final day, we'll pack up and return to the trailhead (10.5 miles, 1500' gain).
We'll hike at a moderate pace (1.5-2 mph), and take breaks for snacks, views, and pictures.
Route: CalTopo
Recent trip reports: Buckhorn Pass, Marmot Pass
Weather forecast: Buckhorn Pass, Boulder Camp
Tubal Cain Mine, Buckhorn Lake & Marmot Pass
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Green Trails Tyler Peak No. 136
Green Trails Olympic Mountains East No. 168S
Custom Correct Buckhorn Wilderness
Trails Illustrated Olympic National Park - See full route/place details.
Required Equipment
The Ten Essentials, plus overnight gear as specified by the trip leader