Mailbox Peak


Day Hike - Mailbox Peak

Conditioner Hike up Mailbox (Old Trail)

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
  • Challenging
  • Mileage: 6.0 mi
  • Elevation Gain: 4,100 ft
  • Pace: 1,000 ft/hr

We will meet at the parking area along SE Middle Fork Road below the hill/parking lot gate. Brandon and I will be there early to help flag you down. We do not want anyone getting locked in at the parking lot overnight, hence parking along the road.

Please meet at the parking area between 4:30-4:45 p.m. We will begin this hike promptly at 5:00 p.m. and we will leave without you if you are late. Please factor in ample time for traffic, etc.

This is an evening conditioner up Mailbox Old Trail. Because this is an evening hike, everyone must have a headlamp! We intend to ascend via Mailbox Old Trail, enjoy the evening views, and based on daylight and the comfort level of the group, we will decide if we will descend Old or New Trail.

Sunset on 6/12 is around 9:00 p.m., however the remaining light will be competing with the surrounding peaks and trees so expect to be in low-light conditions. If you have any questions or concerns about this being an evening hike, please feel free to email either of the trip leaders.

As this is a conditioner, the standard is 1,000 ft/hr gain, however Old Trail is short and steep (5.4 miles RT) and we will be aiming to complete this hike quickly--ideally under 3 hours to the top. This will be a physically demanding hike! Mailbox Old Trail is less maintained and can be very rugged, so we are limiting the group size and will make sure that everyone stays close together on the hike.

For conditioner credit, a pack weight of 25lbs is required. Non-conditioner hikers are welcome, however please be aware of the intent of this hike.


Mailbox Peak

  • Green Trails Mount Si NRCA No. 206S

    Green Trails Middle Fork Snoqualmie No. 174S

    Green Trails Bandera No. 206
  • See full route/place details.
Required Equipment

Required Equipment

  • Trekking Poles are highly recommended.
  • Bring Ample water--you will work up a sweat.
  • Layers that are easy to adjust (zip-ups vs pullovers, e.g.). Plan to start cold--you'll warm up fast!

The Ten Essentials

  1. Navigation
  2. Sun protection
  3. Insulation (extra clothing)
  4. Illumination

  5. First aid supplies
  6. Fire
  7. Repair kit and tools, including knife
  8. Nutrition (extra food)
  9. Hydration (extra water)
  10. Emergency shelter
Trip Reports