Little Si
Main Trail to Little Si summit
The Route
A forest trail climbs to the rocky Little Si viewpoint above North Bend.
- Little Si TrailheadInitial switchbacks
- Boulder Garden Junctions0.3 and 0.5 miles
- Forest & Boulder FieldsGentler middle section
- Rocky Bluff1,550-foot published high point
Lower Switchbacks
The trail climbs sharply for its first quarter-mile before reaching gentler ground. Boulder Garden Loop branches leave at 0.3 and 0.5 miles; the Little Si route stays on the main trail rather than following the loop toward Mount Si.
Forest & Rock Fields
The middle section passes beneath forest canopy beside climbing-access paths, scree and a boulder field. Around 1.3 miles the trail swings around the hillside and begins its final steeper approach to the rocky bluff.
Summit & Return
The published high point is 1,550 feet, overlooking the valley toward Mount Si and Mount Washington. The 3.7-mile return excludes Boulder Garden Loop extensions and Mount Si's Old Trail.
Terrain Along the Route
Forest, boulders and scree border the trail; the final ascent reaches the exposed rocky bluff.
Approximate guide figures for the named route and endpoint, not a current measured track. Reference Set: 2026-10-23.
Weather
Current forecasts open at the providers below. NWS forecasts describe a terrain grid cell, not an exact summit.
Access
Little Si Trailhead, North Bend, WA
Driving Approach
From I-90 exit 32, take 436th Avenue north to North Bend Way, turn left, then right onto Mount Si Road. Little Si's lot is just beyond the Middle Fork bridge and bend; it is before the main Mount Si lot.
Parking & Facilities
A connecting path links the main lot with the overflow lot west of it. WTA lists two toilets at the main trailhead, including an accessible toilet. Discover Pass required.
Site Rules
DNR designates the conservation area for day use. Dogs must be leashed; garbage service is not provided. The official map prohibits parking along county and private roads outside the trailheads.
Source information checked 2026-10-23. Road snapshots are dated separately.
Reports
Little Si Hiker Reports
WTA's dated reports cover the bluff trail and lower forest. Boulder Garden Loop and Old Si extensions can appear in the same feed, so their mileage does not necessarily describe the Little Si out-and-back.
DNR Access Notices
The land manager's Mount Si conservation-area page covers Little Si, its parking and site rules.
Links open the publishers’ report pages. Reports are not automatically imported or filtered to a forecast date.