Tacoma Hiking & Backpacking Calendar
Select any calendar item to get a link to the activity or event page, where you can find more information and register.
*Please note that advanced registration is required for all activities. If you're not a Mountaineers member, you're invited to participate in up to two activities as a guest - you'll just need to create a Mountaineers guest account.
Winter Hiking Series: I-90 Alley February Hikes - West Tiger Mountain No. 2
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Sat, Feb 21, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Rattlesnake Mountain Grand Traverse
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Strenuous
Sat, Feb 21, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Cougar Mountain: Red Town Trailhead
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Sat, Feb 21, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Mount Si Main Trail
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate/Strenuous
Sun, Feb 22, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Grand Prospect
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate, Strenuous
Sun, Feb 22, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Poo Poo Point via Chirico Trail
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Wed, Feb 25, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Rattlesnake Second Ledge
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Wed, Feb 25, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - West Tiger Mountain No. 3
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate/Strenuous
Sat, Feb 28, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Dirty Harry's Balcony
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: *Varies*, Moderate, Strenuous, Strenuous 3, Technical 3
Sat, Feb 28, 2026
Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - Around South Tiger Mountain
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Sun, Mar 1, 2026
Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - Big Creek Loop
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Wed, Mar 4, 2026
Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - Skookum Flats
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Easy/Moderate
Fri, Mar 6, 2026
Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - Mount Teneriffe-Mount Si Traverse
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Very Strenuous
Sat, Mar 7, 2026
Prerequisites, Leader's Permission Required
Winter Hiking Series: I-90 Alley March Hikes - Little Si & Boulder Garden Loop
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Sun, Mar 8, 2026
Prerequisites
Intro to Backpacking Lecture 1 - Mountaineers Tacoma Program Center
Backpacking Lecture: Introduction to Backpacking
This is the first lecture of the Introduction to Backpacking course
Thu, Mar 12, 2026
No Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - Palouse to Cascades Trail
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Easy/Moderate
Fri, Mar 13, 2026
Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - Middle Fork Snoqualmie River
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Sat, Mar 14, 2026
Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - Mount Washington (Snoqualmie)
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: *Varies*, Strenuous, Winter Scramble
Sat, Mar 14, 2026
Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - Margaret's Way to Debbie's View
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Sat, Mar 14, 2026
Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - Snoquera Palisades
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Sun, Mar 15, 2026
Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - May Valley Loop (Squak Mountain)
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate/Strenuous
Sun, Mar 15, 2026
Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - Poo Poo Point via Chirico Trail
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Wed, Mar 18, 2026
Prerequisites
Intro to Backpacking Welcome Zoom Meeting - Online Classroom
Backpacking Lecture: Introduction to Backpacking
Come meet your course leaders and learn more about the course!
Thu, Mar 19, 2026
No Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - Grand Prospect
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate, Strenuous
Sat, Mar 21, 2026
Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - West Tiger Mountain 1-2-3
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Strenuous
Sat, Mar 21, 2026
Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - Cougar Mountain: Jim Whittaker Wilderness Peak Trailhead
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Sun, Mar 22, 2026
Prerequisites
Intro to Backpacking Lecture 2 - Mountaineers Tacoma Program Center
Backpacking Lecture: Introduction to Backpacking
This is the 2nd lecture in the Intro Backpacking course
Thu, Mar 26, 2026
No Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - Coal Creek Natural Area
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Fri, Mar 27, 2026
Prerequisites
Winter Hiking Series: I-90 Alley March Hikes - Rattlesnake Mountain Grand Traverse
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Strenuous
Sat, Mar 28, 2026
Prerequisites