Backpack - Cathedral Rock


Backpack - Cathedral Rock

Just how deep is Deep Lake, anyway? There’s only one way to find out! After camping at the lake we'll head over to Cathedral Rock and spend the next night at Peggy’s Pond. This trip is designed to provide extra skills training for B3 students.

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.
  • Moderate
  • Moderate
  • Mileage: 15.75 mi
  • Elevation Gain: 3,300 ft
  • High Point Elevation: 5,500 ft
  • Pace: 1.5-2 mph

Cathedral Rock Trailhead, 10:00AM

Required parking pass: Northwest Forest Pass

While the "route" attached to this trip is the entire Deception Pass loop, we will only be doing a small "Y":

Day 1: Hike from the Cathedral Rock Trailhead to the PCT junction via Cathedral Pass Trail #1345 ( ) and then follow the PCT south down to the southern shore of Deep Lake where we'll camp for the night.

Note that according to the USFS link above, the bathrooms at the trailhead are indefinitely closed.

Day 2: Hike back up to the PCT junction and then head northwest along the trail to Peggy's Pond, which sits at the base of the western face of Cathedral Rock. The trail to Peggy’s Pond, while short, crosses a steep open slope  - some may consider it a bit sketchy and there's some rocky sections to navigate.

Day 3: Hike back to the trailhead via the same route we came in on.

The longest single-day mileage is 7.25 miles.  The highest single-day elevation gain is 2200 ft.

My wife and I hiked to Peggy's Pond as a day hike last summer (just a week after this trip) and immediately regretted not bringing tents to camp, here are some pictures:

This trip intentionally coincides with the peak visibility of the Milky Way (i.e. the new moon), with astronomical twilight (full darkness) starting at about 10:30pm both nights. I'll be bringing a tripod and my goal is to get a shot of the Milky Way over Deep Lake, although I'm not sure if the galactic core will be high enough to be visible over the mountains. If amateur astrophotography isn't your thing, no worries, but I wanted to give a heads up to anyone who might be interested.


Cathedral Rock-Deception Pass-Tuck & Robin Lakes

Required Equipment

Required Equipment

The Ten Essentials plus overnight gear which may include:

  • Tent with footprint/ground tarp
  • Stove and fuel
  • Sleeping bag
  • Sleeping pad
  • Water filter
  • Bear canister or extra stuff sack and cord designated for hanging food
  • Cooking pot/pan with plate and utensils
  • Toilet paper and shovel or blue bag to deal with waste
Trip Reports