Winter Hiking Series:  I-90 Alley and Beyond - 2026

Day Hiking Course

Winter Hiking Series: I-90 Alley

Hike with us to keep your conditioning up during the off-season in the I-90 area and beyond.

PRIOR GRADUATES:  Please wait to sign up 2 days after Registration Opens (wait until Nov 30, 2025 at 8am) to allow new individuals to sign up first.

Before signing up for this course, you MUST complete the free Low Impact Recreation eLearning course. **FYI: Please complete this course at least 7 to 10 days prior to registration opening since it can take that long for the course badge to be awarded.  Any questions concerning the Low Impact course or the badge should be directed to  Mountaineer Member Services; the course leaders cannot help with this process.**

BRIEF COURSE DESCRIPTION:  This is a day hiking course focused on trips offered in the Issaquah Alps, along I-90 corridor and beyond during the winter months to help the participants become more comfortable hiking during winter months. This is NOT a progressive hiking course; you must be able to hike fairly challenging routes, even as early as January 2026.  Hikes will vary from 6-15 miles in length typically, with elevation also typically ranging 1,200 ft to more than 4,000ft. Please read each hike description and reach out to the hike leader if you have any questions or concerns. ***MICROSPIKES are mandatory equipment for all participants to carry in their backpack for all these hikes.***

COURSE GRADUATION REQUIREMENTS: 

1. Attend the required online Zoom classroom session on Tuesday, 1/6/2026, at 7-8:30pm.

2. Participate in two hikes each month between January and March 2026. Participants must complete one hike per month within the Winter Hiking Series. The second monthly trip must be documented with Gaia, Garmin, Alltrails, etc, and sent to Lisa McPeak or Beth Lowe within 2 weeks of completion for credit.

***MAKE SURE YOU REGISTER FOR THE ZOOM CLASSROOM RIGHT AFTER YOU REGISTER FOR THE COURSE (It is within the Course Requirements section!)***

SCHOLARSHIPS: The Mountaineers is dedicated to making the outdoors accessible to everyone. We offer gear loans and scholarships to reduce financial barriers. If money is keeping you from getting outside, please apply for a scholarship. If you'd like to help make the outdoors more inclusive, consider making a tax-deductible donation.

Badges you will earn:

Course Requirements
Course Activity Date Availability Leader
Winter Hiking Series: I-90 Alley Classroom Session
Online Classroom
Tue, Jan 6, 2026
Registration closes Jan 4
28 participants
0 instructors
Winter Hiking Series: I-90 Alley January Hikes (optional)
Granite & Thompson Lakes
Sat, Jan 10, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Margaret's Way to Debbie's View
Sat, Jan 10, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Taylor Mountain—Holder Knob Loop
Sat, Jan 10, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Squak Mountain: May Valley Access
Sun, Jan 11, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Around South Tiger Mountain
Sun, Jan 11, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Hugo Peak & Windy Ridge
Wed, Jan 14, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Poo Poo Point via Chirico Trail
Sat, Jan 17, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
West Tiger Mountain No. 3
Sun, Jan 18, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Poo Poo Point via Chirico Trail
Wed, Jan 21, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Pinnacle Peak Park
Wed, Jan 21, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Rattlesnake Mountain Grand Traverse
Fri, Jan 23, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Little Si & Boulder Garden Loop
Sat, Jan 24, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Dirty Harry's Balcony
Sun, Jan 25, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Green Mountain: Gold Creek Trail
Fri, Jan 30, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Poo Poo Point via High School Trail
Sat, Jan 31, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Margaret's Way to Debbie's View
Sat, Jan 31, 2026
Registration opens Jan 7; Instructor registration open now
6 participants
0 instructors
Winter Hiking Series: I-90 Alley February Hikes (optional)
Mailbox Peak
Thu, Feb 5, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
1 instructor on waitlist
Mount Washington (Snoqualmie)
Sat, Feb 7, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
0 instructors
Middle Tiger Mountain
Sat, Feb 7, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
0 instructors
Cedar Butte (Olallie State Park)
Sun, Feb 8, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
0 instructors
Little Si & Boulder Garden Loop
Wed, Feb 11, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
0 instructors
Rattlesnake Second Ledge
Fri, Feb 13, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
1 instructor
Poo Poo Point via High School Trail
Sat, Feb 14, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
0 instructors
Otter Falls
Mon, Feb 16, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
0 instructors
West Tiger Mountain No. 2
Sat, Feb 21, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
0 instructors
Rattlesnake Mountain Grand Traverse
Sat, Feb 21, 2026
Registration opens Jan 16; Instructor registration open now
8 participants
0 instructors
Cougar Mountain: Red Town Trailhead
Sat, Feb 21, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
0 instructors
Mount Si Main Trail
Sun, Feb 22, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
0 instructors
Grand Prospect
Sun, Feb 22, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
0 instructors
Poo Poo Point via Chirico Trail
Wed, Feb 25, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
1 instructor
Rattlesnake Second Ledge
Wed, Feb 25, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
0 instructors
West Tiger Mountain No. 3
Sat, Feb 28, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
0 instructors
Dirty Harry's Balcony
Sat, Feb 28, 2026
Registration opens Jan 16; Instructor registration open now
6 participants
0 instructors
Winter Hiking Series: I-90 Alley March Hikes (optional)
Around South Tiger Mountain
Sun, Mar 1, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
Big Creek Loop
Wed, Mar 4, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
Skookum Flats
Fri, Mar 6, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
Mount Teneriffe-Mount Si Traverse
Sat, Mar 7, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
Little Si & Boulder Garden Loop
Sun, Mar 8, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
Palouse to Cascades Trail
Fri, Mar 13, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
1 instructor
Middle Fork Snoqualmie River
Sat, Mar 14, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
Mount Washington (Snoqualmie)
Sat, Mar 14, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
Margaret's Way to Debbie's View
Sat, Mar 14, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
Snoquera Palisades
Sun, Mar 15, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
May Valley Loop (Squak Mountain)
Sun, Mar 15, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
Poo Poo Point via Chirico Trail
Wed, Mar 18, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
1 instructor
Grand Prospect
Sat, Mar 21, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
West Tiger Mountain 1-2-3
Sat, Mar 21, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
Cougar Mountain: Jim Whittaker Wilderness Peak Trailhead
Sun, Mar 22, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
Coal Creek Natural Area
Fri, Mar 27, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
Rattlesnake Mountain Grand Traverse
Sat, Mar 28, 2026
Registration opens Feb 16; Instructor registration open now
6 participants
0 instructors
Roster
Required Equipment

10 Essentials plus microspikes

Course Materials
Name/Description