Mount Si Old Trail

A strenuous, 7 mile hike with 3,300 ft in elevation gain. The trail features part of the Boulder Garden Loop, a steep old trail for a good workout and views of the Upper Snoqualmie Valley and Puget Sound.

getting there

Take Exit 32 off of I-90 near North Bend. Turn left, crossing over I-90, and follow 468th Ave NE to SE North Bend Way and turn left.  Turn right onto SE Mount Si Road and then left into the Litte Si/Exit 32 Parking Lot shortly after crossing the bridge across the Middle Fork Snoqualmie River.

on the trail

Mount si (3,900 ft)

A moderately strenuous 7-mile round trip hike with 3,300 feet of elevation gain

Hike the Little Si Trail and take either the southern or northern leg of the Boulder Garden Loop Trail to the "old connector trail." Continue to the intersection with the Mount Si "Main" Trail, turn right and continue to the top.

scramble routes

blowdown mountain (4,560 ft) and crater lake mountain (4,351 ft)

a 12-mile round trip scramble with 4,400 feet of elevation gain, difficulty: strenuous 4, technical 2

From top of Mount Si continue on the path and road to where that road terminates northwest of Mount Teneriffe. Ascend past 4,440 ft, then follow the ridge northwest, descend west to a saddle, and then ascend continuing west to the summit of Blowdown Mountain. The views are not great, but in winter, this is all that daylight may allow. From Blowdown Mountain, travel north, descending to a saddle and then ascending to Crater Lake Mountain.

Dixie Peak (4,606 ft)

a scramble with 4,400 feet of elevation gain, difficulty: strenuous 4, technical 4

From top of Mount Si continue on the path and road to where that road terminates northwest of Mount Teneriffe. Ascend past 4,440 ft, then follow the ridge northwest and then north to Dixie Peak.

INFORMATION FOR LEADERS

  • Permits are required in this area for all fee-based (course-related) activities, regardless of group size. Leaders may list trips at this route/place with the understanding that they need to verify that a permit has been obtained before running the trip (if required as outlined above). Permit applications are submitted to WA Department of Natural Resources annually in December. Please contact Amanda Virbitsky at amandav@mountaineers.org with any additional questions.
  • Difficulty: Strenuous
  • Length: 7.0 mi
  • Elevation Gain: 3,300 ft
  • 3,841 ft
  • Land Manager: Mount Si NRCA
  • Parking Permit Required: Discover Pass
  • Recommended Party Size: 12
  • Maximum Party Size: 12
  • Maximum Route/Place Capacity: 12
Map
  • Green Trails Mount Si NRCA No. 206S
Activities

Upcoming Activities



Seattle SIG Practices and Conditioners - Mount Si Old Trail

Climbing Field trip: Basic Alpine Climbing Course
SIG Skills Conditioner - Hiking (@Mt. Si via Old Trail) & Optional Post Hike Climbing
Difficulty: Strenuous
Sat, Jan 25, 2020
No Prerequisites, Leader's Permission Required
9 participants 1 instructor on waitlist
Registration closes Jan 23
Seattle Branch

Seattle SIG Practices and Conditioners - Mount Si Old Trail

Climbing Field trip: Basic Alpine Climbing Course
Conditioning hike for Arnold/Stoury SIG members.
Difficulty: Strenuous
Sun, Jan 26, 2020
No Prerequisites, Leader's Permission Required
1 participant 0 instructors
Registration closes Jan 24
Seattle Branch

Day Hike - Mount Si Old Trail

Day Hiking Trip
Fun conditioning hike!
Difficulty: Strenuous
Sat, Feb 8, 2020
No Prerequisites, Leader's Permission Required
2 participants on waitlist 0 leaders
Registration closes Feb 6
Tacoma Branch

Day Hike - Mount Si Old Trail

Day Hiking Trip
Find out what condition your condition is in.
Difficulty: Strenuous
Sun, Feb 9, 2020
No Prerequisites
2 participants on waitlist
Registration closes Feb 7
Olympia Branch

Seattle SIG Practices and Conditioners - Mount Si Old Trail

Climbing Field trip: Basic Alpine Climbing Course
Conditioning hike for the Foothills SIGs.
Difficulty: Strenuous
Thu, Feb 13, 2020
No Prerequisites, Leader's Permission Required
1 participant 1 instructor
Registration closes Feb 11
Seattle Branch

Day Hike - Mount Si Old Trail

Day Hiking Trip
This is a conditioner hike for Tacoma basic students.
Difficulty: Strenuous
Sun, Mar 15, 2020
No Prerequisites, Leader's Permission Required
11 participants
Registration opens Feb 7
Tacoma Branch

Seattle SIG Practices and Conditioners - Mount Si Old Trail

Climbing Field trip: Basic Alpine Climbing Course
SIG activities, including skill practices conditioning trips
Difficulty: Strenuous
Tue, Mar 17, 2020
No Prerequisites
5 participants 2 instructors
Registration closes Mar 15
Seattle Branch

Day Hike - Mount Si Old Trail

Day Hiking Trip
Conditioner hike for Tacoma students
Difficulty: Strenuous
Sun, Mar 22, 2020
No Prerequisites, Leader's Permission Required
11 participants
Registration opens Feb 7
Tacoma Branch

Seattle SIG Practices and Conditioners - Mount Si Old Trail

Day Hiking Field trip: Basic Alpine Climbing Course
SIG Skills Conditioner - Training for Successful Approaches
Difficulty: Strenuous
Tue, Mar 24, 2020
No Prerequisites, Leader's Permission Required
7 participants 0 instructors
Registration closes Mar 22
Seattle Branch

Conditioning Hikes - Mount Si Old Trail

Day Hiking Field trip: Alpine Scrambling Course
Seattle Alpine Scramble Course Conditioning Hike
Difficulty: Strenuous
Mon, Apr 6, 2020
No Prerequisites
6 participants 0 instructors
Registration opens Feb 4; Instructor registration open now
Seattle Branch

Day Hike - Mount Si Old Trail

Day Hiking Trip
Difficulty: Strenuous
Sat, Apr 11, 2020
No Prerequisites, Leader's Permission Required
11 participants
Registration opens Mar 31
Tacoma Branch

Seattle SIG Practices and Conditioners - Mount Si Old Trail

Climbing Field trip: Basic Alpine Climbing Course
Fitness assessment for the K10 sig.
Difficulty: Strenuous
Thu, Apr 16, 2020
No Prerequisites, Leader's Permission Required
7 participants 0 instructors
Registration closes Apr 14
Seattle Branch

Rock & Snow Field Trip (Saturday & Sunday) - Mount Si Old Trail

Scrambling Field trip: Alpine Scrambling Course
Day 1 of 2 for a full weekend of back-to-back field trips to learn and
Difficulty: Strenuous
Sat, Apr 18, 2020
No Prerequisites
11 participants
Registration opens Apr 13
Seattle Branch

Seattle SIG Practices and Conditioners - Mount Si Old Trail

Day Hiking Field trip: Basic Alpine Climbing Course
SIG Skills Conditioner - Training for Successful Approaches
Difficulty: Strenuous
Tue, Apr 21, 2020
No Prerequisites, Leader's Permission Required
4 participants 0 instructors
Registration closes Apr 19
Seattle Branch

Day Hike - Mount Si Old Trail

Day Hiking Trip
Difficulty: Strenuous
Sat, May 9, 2020
No Prerequisites, Leader's Permission Required
11 participants
Registration opens Apr 30
Tacoma Branch

CHS 2 Hike - Mount Si Old Trail

Day Hiking Field trip: Conditioning Hiking Series
We'll hike up the steep old trail via the Talus Loop for a good workout
Difficulty: Strenuous/Very Strenuous
Fri, Jun 5, 2020
No Prerequisites
10 participants
Registration opens May 27
Seattle Branch
Trip Reports
Titles

This is a list of titles that represent the variations of trips you can take at this route/place. This includes side trips, extensions and peak combinations. Not seeing a title that fits your trip? Log in and send us updates, images, or resources.

  • Mount Si and Teneriffe Traverse
  • Blowdown Mountain
  • Crater Lake Mountain
  • Crater Lake & Blowdown Mountains
  • Dixie Peak
Resources

There are no resources for this route/place. Log in and send us updates, images, or resources.

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Jeffrey Hunt
Jeffrey Hunt says:
Wed, Dec 7, 2016 10:59 AM

Jeff's Mentor Group Conditioner Hike to assess fitness. By next spring the goal is Old Si trail in 90min with 20%BW.

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