Thornton Lakes & Trappers Peak


Alpine Scramble - Thornton Lakes & Trappers Peak

Moderate paced scramble to Trapper Peak in the North Cascades. Trail head to summit evaluation gain is 3500 feet. The round trip distance is approximately 10.5 miles.

COVID-19: Learn about our most up-to-date guidance for participants and leaders on our COVID-19 Response page. All participants and leaders must agree to the COVID-19 Code of Conduct before participating in this Mountaineers activity.
  • Very Strenuous
  • Moderate
  • Mileage: 10.6 mi
  • Elevation Gain: 3,300 ft

Meet at the Thornton Lake trailhead.

Be ready to start the scramble at 9:00 am.

Parking permit required: Northwest Forest Pass

This will be a moderate paced scramble.  It is the responsibility of each participant to stay within voice distance of the participant behind them.  Enclosed is a map, profile and segment description of the route.  We will return to the trail head prior to 5:00 pm.

You will be using the map and segment description to lead the navigation to and from our destination.

Please check your email after 9 pm on the day before the trip, and in the morning before you leave for route changes due to weather conditions.  If you do not receive an email at either of these times, the route has not changed.

The actual route will depend on the terrain, weather conditions and participants’ abilities. If needed, an alternate, safer destination will be chosen by group consensus.

Helmets are mandatory.

We will conduct a post trip feedback discussion at the cars.


Thornton Lakes & Trappers Peak

Required Equipment

Required Equipment

Trip Reports