Field trip: Winter Hiking Series: I-90 Alley
Winter Hiking Series: I-90 Alley February Hikes - Little Si & Boulder Garden Loop
Trip initially open to Winter Hiking Series students. Trip will open for registration to all Mountaineers 7 to 10 days prior to the hike date.
- Wed, Feb 11, 2026
- Tacoma Hiking & Backpacking Committee
- Day Hiking
- Adults
- Moderate
- Moderate
- Mileage: 6.0 mi
- Elevation Gain: 1,700 ft
- High Point Elevation: 1,580 ft
- Pace: 1.8-2.2 mph
- 6 (6 capacity)
- FULL (2 capacity)
- Fri, Jan 16, 2026 at 8:00 AM
- Mon, Feb 9, 2026 at 5:00 PM
- Cancellation & Refund Policy
- iCal Google
***Trip initially open to Winter Hiking Series students. Trip will open for registration to all Mountaineers 7 to 10 days prior to the hike date.***
We will hike to the top of Little Si first and take a few minutes to enjoy the views (hopefully!) and a snack. We will descend and make our way back to the parking lot via the Boulder Garden Loop taking some time to enjoy the Zen-like mossy boulders and other greenery that is so prevalent in this area. The trail up to the Boulder Garden is reasonably steep. Please remember to bring your ten essentials and multiple layers as weather can change quickly this time of year. I will be asking all participants to carry micro-spikes with them.
Remember that a DISCOVERY PASS IS REQUIRED to park at the Little Si Trailhead.
We will meet in the Little Si parking lot by 8:45am and be on the trail no later than 9am. Please remember that the Highway 18 construction and mid-week traffic may require a little extra time for your travels.
Required Equipment
Ten Essentials PLUS microspikes